Do You Need A High Resolution Camera? AI VS MEGAPIXELS

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13 апр 2020

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Комментарии : 332

@MarkSmithphotography 3 года назад

Help support me and what I do: ko-fi.com/marksmithphotography

@daviddowling9830 4 года назад

Condolences on your recent loss,thanks for staying with the videos,this is a great topic.Looking forward to shooting Ospreys again.

@swrxs 4 года назад

The background is how I knew which was upscaled. The branches closest behind the bird, at least to me, looked like it was modified / edited.

@RyanMenseWildlife 4 года назад

Pretty incredible stuff. The problem with side by side comparisons is that people get too hung up on them. If Mark simply showed us the a9 upscaled photo as part of one of his traditional videos, none of us would question anything about it from a technical standpoint. THAT is the real test and it passes in my opinion. Since we are primed to nitpick in this video, we start seeing things that really aren't important. Edit: That's an interesting LR catalog name you got there

@MarkSmithphotography 4 года назад

How do you know I haven't already included some upscaled images in my videos? Good point though and yeah, I am childish. I love naming things like the lr catalog with childish toilet humor.

@Methodical2 2 года назад

Exactly. They both would be acceptable on my wall and no one would know the difference. Topaz has a big discount on this stuff today, so I will probably get it and have a new toy to play with.

@aerofart 4 года назад

So glad you covered this topic, Mark. I just bought a new a9 and love love love its focus performance, but have been less than thrilled about the sensor resolution. It’s good to know that an a9 quality image can be upscaled to look 99% as good as an a7IV image. As for the extra cost (in time and software) involved to get it there, I think it’s worth it especially if you have some amazing images you’ve captured with the incredible a9! Keep up the great work. Love your channel.

@lisadriscoll8510 4 года назад

Thank you so much for this video, Mark. Perfect timing for me as I have been trying to decide if I really need/want to buy a higher resolution camera. I purchased Gigapixel recently but haven't used it much yet and also have DeNoise that I use on many photos. Your comparison was great and for now, will keep me from the expense of a new camera and dealing with the super high res files.

@Celestialrob 4 года назад

Really interesting. I bought the a92 and because of work and now lock down have not really used it. My one silly concern was 24 versus 42 mpxls on my old a7R2. Now you’ve shown me a solution, that I may never have needed 😄 thank you

@MarisElsins 4 года назад

The upscaled image has a really bright (unnatural) edge on the back of the bird (similar to oversharpening or with excessive clarity boost). Interestingly, that edge is not visible everywhere, so I believe in certain lighting/background conditions it would not be that visible.

@mikecrowley6485 4 года назад

I hope ye are keeping well Mark. Great video, a good option for people to know about.

@gatsby498 4 года назад

Thanks for this, Mark! Thought I’d add my own experience. I shot a mountain scene on my D850 and wanted to print large (48x32 inches). Tried Gigapixel AI and didn’t care for the upscaled image (mostly ok but some odd artifacts, even after a few attempts). Ended up sending the original 45 megapixel D850 image to printer and it looks amazing on the wall-fantastic detail. The lesson I took away was that 45 MP can give you a great print. Again, just my experience with a single image.

@RichardBO9 4 года назад

Cool Video. Thanks for the demonstration. I thought the birds looks very similar. The background is what gave away the difference.

@ross_spirou_photography 4 года назад

Not many of us have quality tele lens to get us close to our subject which means that cropping is needed and at times, heavy cropping so a high megapixel camera is needed so we don't lose too much detail and I'd rather keep the editing to just cropping

@dsorx 4 года назад

Great topic. I recently did this with some D500 limpkin shots that were cropped and I wanted to print 8 x10. I used a different resize product that I already own to upscale them and I was very happy with the prints.

@terryanderson7036 4 года назад

Very interesting! Thanks for taking the time to make this very good video Mark. I will have to see how it compares with my A7R2 and A9. I will have to play and try it on both just for fun. Thanks again!

@whobedannyd 2 года назад

Hey Mark, I thoroughly enjoy your videos!! I have learned SO MUCH by watching them, and am AMAZED by many of your shots!! You and I certainly share the same passion for wildlife and wildlife photography ... and Ospreys!! Just wanted to let you know that I clicked on your Topaz link and bought the Gigapixel AI software. It has definitely made a difference in sharpening my photos, beyond anything I could do with LightRoom or PhotoShop. Thank you again for sharing your talents!!

@MarkSmithphotography 2 года назад

Awesome and thanks

@avinashrai11141 4 года назад

Problem with algorithms is that it works well when humans cant remember and differentiate pattern. Problem occurs when you can recognise the pattern then you will find fault in AI based upscaling.

@elderinmoi1571 4 года назад

SPEEDWEED on the other hand a Computer is even better in recognizing patterns than a person so the results may be even better in an image that has lots of them.

@michaelcohen6177 4 года назад

I expected a different result. For me, the a9 is a better experience and I rarely print. That said, when I’m not shooting birds and have good light, I use the a7iv. Another very helpful video Mark. Thanks

@anthonyc1883 4 года назад

Thanks for this good coverage. Shine on, you crazy diamond!

@ppalm951 4 года назад

Thanks Mark. I tried the Topaz AI Denoise based on your recommendation and I've been loving it! Will have to put this on my wish list. Hoping my business will survive virus shutdown

@yzmoto80 4 года назад

After pausing the video and studying the photos, I have come to the conclusion that they BOTH look WAY better than my iPhone 6 photos... 😂

@MarkSmithphotography 4 года назад

Lol

@jackbrumby1892 4 года назад

The only time I use my iPhone6 to take photos - price tags in stores so I can compare prices.

@youknowwho9247 4 года назад

Running phone images through the AI is possible though.

@sameershah6871 2 года назад

🤣🤣🤣🤣

@sidehustlers336 2 года назад

I use mine for 🐔 pics

@Eli-lb1lc 4 года назад

Great comparison. Btw you can type in the width or height that you want gigapixel to upscale the photos to so you can match the resolution exactly.

@brucegraner5901 4 года назад

Mark, thanks for making this video. I have to use a smaller sensor camera to save weight due to a back injury. It's nice to know there's hope for those of us unable to afford or use megapixel cameras. I've had surprising good results in prints up to 20x24-inches though I'm still a big fan of what you've been able to accomplish with your Nikon and Sony gear.

@davedemarco1743 4 года назад

Mark, awesome idea for a video in the era of self quarantine!!

@don_wild 4 года назад

Topaz's products have an option to use GPU instead of CPU. It helps alot even if you have a slow GPU.

@GeertDelmulle 3 года назад

Absolutely! Too bad that option is disabled by default. And the impact on performance is immense.

@jakelindsay6251 2 года назад

I guessed right. I felt like the A9 upscaled had a bit of a digitally enhanced look in the feathers on the belly and the scales on the feet. Really great video and info. Thanks!

@langdons2848 4 месяца назад

As did I, it wasn't too hard to spot, but it wasn't glaring either. I'd be interested to see the test done on the same photos but with the current generation of upscaling tools (three years on). I'm betting the difference would be harder to pick.

@maple-leafs13 4 года назад

Hope everything is well with you and your family. Great video as always.

@martinsmyth5580 4 года назад

I actually thought the A9 one looked better before Mark called it out but maybe that's youtube. This type of AI will just keep getting better but at the end of the day it's about getting the shot that's where the man comes in 😁

@CamillaI 4 года назад

Me too

@rodspov1915 4 года назад

Thanks Mark. You just proved what I have been thinking lately...Great comparison. I guess other camera attributes will become more important than resolution..such as focus speed, DR, micro contrast and more so ergonomics and easy of use. Cheers

@westr70 4 года назад

Wow, that was pretty interesting. I'll have to look into the program.

@antonoat 4 года назад

Great to see you posting Mark, real food for thought. I think you’d probably agree that having the print is only part of the pleasure, going out into nature and seeing these amazing spectacles is a massive part of what we love about wildlife photography. A bit like when I used to go fishing when I was younger , not catching a fish rarely ruined the day! Ultra high res cameras are definitely more demanding to use, I loved my D3 with it’s lowly 12 mp, the image quality was still fantastic. I digress lol, will check out the software . Cheers. Love Pink Floyd.

@jacobl6572 4 года назад

With lower pixels sensors, from my experiance using a 16MP Df, you can get great results with with Topaz, even more improvement than very dense sensors. There is less overall 'mush' to clean up.

@antonoat 4 года назад

@@jacobl6572 Well I'm not convinced cramming more pixels into a small space/sensor is the most pleasing visually or even the best way to increase resolution!

@pictureworldphotography 4 года назад

I've downloaded the trial version and used it to upscale some of my old 6 megapixel photos and the result have been great, I'm really impressed with the software, mostly been using it at 2x but 1 image I decided to upscale it by the maximum of 6x and I was truly amazed at the result. Nice video..

@olinwread137 4 года назад

To be honest, I would have appreciated the same test, but zoomed in on greater detail to the photos. Real pixel peeping. I also noticed you didn't share the full resolution of your image files. Very interesting all the same and thank you for sharing!

@kbarrett1844 4 года назад

I could tell which was which, but in all honesty I wasn't expecting the A9 file to be as good as it is. Amazing really. And, it's only going to get better. Thanks for making this video.

@DennisMoncla 4 года назад

Mark, You are the reason I bought Denoise AI and was interested in this program. All of the sudden I needed to upres an image I submitted to a contest for publication. My original was cropped and not high enough res for publication for them. I immediately got gigapixel and boom I have a hig res version of my cropped image. I played with the slidders till I could get it almost exact as the judges were seeing on the original. Thanks for the great videos!!!

@k1k13004 3 года назад

I love Denoise AI. I'm not impressed by GIgapixel

@enigmabletchley6936 4 года назад

Great video - I've been thinking about getting Gigapixel for use with my X-T3 which I my main wildlife camera and I may take the plunge. One issue with the high-res cameras I've heard is that you have to be very careful as any shake will be amplified greatly in IQ and as I am in my sixties shake is now becoming a consideration. As an aside, my other system is the Fuji GFX50S Medium Format camera which I use for architecture/landscape but I have used it to photograph our tame backyard fox and of course a 50mpx MF sensor gives you quite an advantage. Thanks again for an informative video.

@sapelesteve 4 года назад

Very interesting video Mark. Hope that you & your family are doing well & staying safe....👍👍📷📷

@howardfritzke6149 4 года назад

If I understand this correctly from Topaz themselves this particular program is graphics card intensive (GPU) in processing. Having a highly functional graphics card is more important dealing with processing times than memory or mega CPU.

@MarkSmithphotography 4 года назад

I've got that as well just forgot to mention it in the video.

@VladimirNaumoff 4 года назад

Great video Mark, I will definitely try this. I have all these Topaz packages and I hardly use them. Now I guess time to learn. :) Take care and hope to see you guys soon.

@dagr8ape 4 года назад

This test was very interestinh, I I appreciate it. Glad you used the a7ii. Keep the videos coming.

@tomlee812 4 года назад

As always, I really enjoyed this one and it's made me think. After watching your de-noise video I tried it and bought it and I think it is a great piece of software. Now I'm going to try the Gigapixel trial and see. I think you've done it again Mark. thanks so much for keeping us going during lockdown. Just a thought. Do you use Gigapixel and denoise on the same image and if so in which order would you recommend? Thanks from across the pond in East Sussex England.

@baszonneveld7740 4 года назад

An eye opener! Also good for Deep Sky photography....Thx Mark

@greygoose3936 2 года назад

This really made me think about what camera I want to upgrade to. I currently use an A7Rii which is 42mp but the AF is pretty slow for birds. I've considered picking up a used A9 since they're getting cheaper and this program would help ensure I can still do high res prints. Great video.

@markrigg6623 4 года назад

You get a thumbs up just for the Floyd shirt.

@jacobl6572 4 года назад

I had one like that from a 1975 concert. Great show but I moved on to less cynical and depressing music.

@markrigg6623 4 года назад

@@jacobl6572 Id describe Dark Side Of the Moon as thought provoking rather than depressing. Later albums became darker but even then the bands talent was to make the music itself (not themes or lyrics) uplifting. Thats why they were so popular.

@jacobl6572 4 года назад

@@markrigg6623 Being a product of the '70's, the drugs that came in with the band(s) were over the top. I also photoed some big bands since you could bring in your gear back then. A true story; I brought a insulated cooler of ice tea into the Floyd concert, kinda innocent of heavy drugs and the drug culture, a guy came up to me and asked, "Do you have any tea?" I thought to myself he can get his own ice tea, and said No. BTW, I play electric guitar and do admire Gilmore's leads, not to be totally against talented people.

@markrigg6623 4 года назад

Yes Gilmour is fantastic and he wasn't driven by the anguish Roger was.

@jacobl6572 4 года назад

@@markrigg6623 So true, he is nearly unmatched in soulful playing. They were my favorite group. I also saw them in 1978 in Cleveland. They were doing a couple shows a year to promote their albums. I have seen with this band and others, drugs skyrocket along with teen suicides going up. They identified the problems we kids could relate to back then and even now, so well, yet I was always left empty and cynical to the future and life in general as I soaked my mind into their music. Since they had no message of hope it helped facilitate me to fall into a deep depression, high anxiety and hopelessness. l was on prescription drugs just to function. Not to blame it all on them, I did not handle anger well. I ended up finding Christ as my Lord and Savior which gave me a new hope and a promising future, I also found total forgiveness and healing from my faith for the last 30+ years. So the band is a bitter sweet kinda thing for me. I came mighty close to being another brick in the wall.

@sdc9368 4 года назад

You're right, the visual experience always exceeds the photograph. But I'm still going to look into Topaz products.

@tmjcbs 4 года назад

You can, of course, also apply the gigapixel-AI software on photos taken with the A7r iv. Not so much to blow these images up to incredible pixel dimensions, but to crop very heavily and upscale the crop with Topaz. I do this for bird photography and I don't mean the huge bird of prey in this video, but small and shy songbirds you sometimes have to photograph from 10 meters or more. I can crop so much that you can get a 2000mm photo from a 600mm lens.

@koolkutz7 4 года назад

Thanks for the interesting comparison Mark. I would love to see you compare a high res camera such as the Nikon D850 vs the Samsung S20 Ultra with it's 100x 'space zoom' for wildlife images.

@davidburton2294 4 года назад

Wow the upscaled A9 looks amazing! great review

@rauldeandrade 4 года назад

I could tell the difference especially because a7r iv has finer detail on the dry feathers (you can see the individual strands) but surprisingly close. You notice a difference in clarity as well, like if there's a better lense on the a7r iv.

@MarkSmithphotography 4 года назад

Exactly

@JB-nr8fu 3 года назад

I have an old Canon and need a new camera. I know I need direction. Thx very much, I love your videos and the birding tours I go on, people bring a nice camera and takes nice photos, but yours are spectacular!

@atomikmaster1 4 года назад

Big hug Mark 🤗 Thank you mate. Support from Australia 🇦🇺 🙏

@CALTECH007 4 года назад

Love the T-shirt. Yes we are on the dark side of the moon.

@etienneswart8700 4 года назад

CALTECH007 But we will exit hopefully soon 😳🤔🇿🇦

@judyboyd9530 4 года назад

I find myself using the D850 more than the D500 just because of the larger resolution. I think these types of videos are very helpful when trying to decide to purchase a new software. Thank you 😊

@jacquesjohnson639 4 года назад

Thanks for touching on this software. I have DEFINITELY been thinking about trying it - but FIVE MINUTES! Ugh! My question would be, what settings (or if it is worth it) would be a minute or less - if that makes sense...

@SubiTrekker 4 года назад

Hi Mark. Glad to see that you are doing well. One thing - how about showing the before and after of the smaller rez photo side by side to get a better idea of what gigapixel can do.

@johnsg8 4 года назад

One thing I noticed right away was the better dynamic range on the A9 compared to the A7.

@jefflong8449 4 года назад

Now i know why your A9 Pics Aer So Clear!!! Great Job

@jss27560 4 года назад

When comparing the two one thing I noticed was that the background of the ne on the right was better.I bought the sharpen Ai and at leaset the picture I printed didn’t show much difference.Maybe it was the picture.

@birdsofray 4 года назад

Have you seen some artifacts when upscaling? I love Denoise AI but you have to keep an eye on your output because it can create some weird artifacts on the edges. Thanks in advance, and keep this series going!

@mariol8831 4 года назад

I have a A7III and I use that software to upscale the images shot in APS-C mode (10MB) and it does a pretty good job.

@nathanielcashjr.732 4 года назад

You should show the before upscale with the after upscale to see if it makes that much of a difference. Does it make a difference in the two prints from both cameras and also a print from the before and after.

@wildlifebybrianhoule 4 года назад

Hi Mark, double check out the advanced preferences for Gigapixel. Toggle the "Enable Discrete GPU" to no (or vice versa - I had to change mine to no) and enable Intel OpenVino to Yes. I made those changes and my 12 core Mac Pro was singing where prior to those changes, it was taking minutes just as you described.

@MarkSmithphotography 4 года назад

Thanks

@billimbriale8535 4 года назад

Great video Mark. Hope you and your children are doing well.

@joefrat 3 года назад

Reminds me of the audio world: what we need is a good 5 watt amplifier. What we need is a good 5 megapixel camera.

@OccultDemonCassette 3 года назад

Lightroom, photoshop and Gigapixel are why I haven't bothered to upgrade from my Sony A7II. All I really wanted was IBIS, and I've got that. Though I have considered getting the A7III or A7C when they get closer to a $800-$1000 price on the used market because I'm definitely interested in the silent shutter feature.

@LolitaDavidovich934 4 года назад

What kind of computer do you have, what is the minimum RAM and storage, how many inches is your screen, stuff like that, laptop vs desktop?

@minusinfinity6974 4 года назад

Not sure why it takes your PC so long, I have an older AMD 1700x 8 core CPU and it only take about 30-40s to render upscaled shots. Also I never use jpg, I only upscale 16 bit tiffs, which are massively bigger than jpg. Maybe you have not enabled GPU acceleration or you don't have a supported GPU. I also don't upscale so much in general, I like to stick to say 25-35% enlargement which is like making the A9 go from 24MP to 37-44MP. Another tip don't do as much sharpening in Gigapixel and use Topaz Ai Sharpen to do the heavier lifiting in Photoshop. Anyway, great work Mark as usual.

@GBBLGBL 4 года назад

Was the one lens on a tripod in the same location and you switched the two bodies? If so, something does not look right with the background at all.

@Mr09260 4 года назад

Great Video Mark

@pineapple8407 4 года назад

Love to see this same experiment with a landscape photo

@joshmandeville3835 4 года назад

Out of curiosity, what specs does your pc have? Especially storage. I bought the denoise AI due to your video. And I've been really impressed with it.

@dinwa276 4 года назад

Thanks for this video. My camera is a Nikon D7200. After playing around with Gigapixel, I was impressed and I wanted to see a quality comparison like this. A few more sample images would be fun.

@jayryia 4 года назад

This would've been interesting as well with the d500 and the 200-500

@youknowwho9247 4 года назад

Why would the results be different?

@FabrizioGiammatteo 4 года назад

Topaz is draining my bank account, I have already bought Denoise and Sharpen AI and I think I will get this one too ;-) Great one as usual Mark :)

@CamillaI 4 года назад

same here

@jacobl6572 4 года назад

It also come in a bundle pack, 4 programs for $250

@whatmattersmost6725 4 года назад

Hi Mark, I think what you are seeing like me, the A7R4 has better color & contrast, that's what makes me like the left image better. Thanks for this vid!

@MarkSmithphotography 4 года назад

Agreed

@artakhambarian2477 4 года назад

Hi Mark! Very interesting, as always. My suggestion would be to apply the AI to the A7RM4 as well, just for fairness and then compare again, and then view both at 100% and then at 200% as well!...

@carmas54 4 года назад

didn't even know you could do somethsing like this...the software isn't expense...thanks Mark.

@kjb_tennessee 4 года назад

I purchased the Denoise and have no regrets. I use it also to sharpen even if iso is low. I’ve tried the sharpen AI and thinking about letting the trial version lapse, for my d500 the denoise seems to do the job. Maybe it’s just me.

@sosomelodies659 4 года назад

Couldn't see the difference on my smartphone screen. LOL I suppose part of the fun of owning the A7R IV and the A9 would be holding them in your hands and shooting with them. Photographer's love their gear.

@cheekymonkey3154 4 года назад

Love the stickytape-eyeglass-frame look.

@RJBiteanerd 4 года назад

I could almost instantly tell which one was upscaled, or at least I thought I could, maybe it was a lucky guess. The bokeh looked weirdly emphasized and out of place behind the bird. The moss on the tree branch where it meets the trunk also looked rather strange on the upscaled one. Would it be possible to do a longer comparison of photos to see if people can see it?

@TheArabianHunter 4 года назад

Many thanks Mark

@ddunnum 4 года назад

I had a shirt like that... in the early 70s It shrunk a bit and wore out. Good video. Interesting. The price is a bit much though for me.

@DennisMook 4 года назад

Two things. If you had to examine the two images side-by-side that closely to find a minute difference, then does it really matter? No one will notice if he or she is looking at the entire image. Also, if you hold down the shift key when in LR comparator mode, you can reposition either image so the same part of the file (Osprey in this case) is exactly side-by-side. Makes the comparisons much easier. You are an extraordinary photographer. Thank you so much for your videos and you and your family have my sincere and heartfelt condolences on your recent loss.

@rickoleary 4 года назад

this is super cool! I can not wait to test this on some of my images which i needed to crop in on. question! as far as workflow, i'm assuming you upscale the raw file with gigapixel AI first and then do your edits? A9 shooter here. i'll buy it through your link. thanks Mark!

@maze400 4 года назад

Correct me if i am wrong but don't the higher end lower resolution cameras typically have better dynamic range? If so, I would think this software would be a godsend. Thanks for the video.

@rolandrick 3 года назад

I like that T-shirt. Has been my first LP.

@fsahouri 4 года назад

but you can upscale the a7v picture, i think for fare comparison you must upscale both pictures for 100 mp or maybe more

@fredkrieger278 4 года назад

Hi Mark, great video. I was wondering how the Gigapixel worked. How about stepping a D500 shot up to a D850 size? Did you break your glasses?

@bobinoregon2859 4 года назад

Good job! Have you tried upscaling the resolution using Topaz Sharpen AI, and what are the differences between the two programs? Cheers

@helious74 Год назад

Thank you Mark another great video. I had to change systems and I no longer have the Sony a1. I am thinking of getting a Nikon z9 or a canon r3. After seeing this video it making me wonder if the 24 megapixel Canon will hold up to the 45 Megapixel Nikon. I do a lot of cropping and I have always felt that 24 MP is just too small to stand up to cropping. What would be better a z9 or a r3? Thank you.

@sdijnfpo0jaisf 4 года назад

Wouldn't it be better to take an a7r iv photo, down sample to 4000x6000px, then run thru Topaz to upscale it?

@4gharpure 4 года назад

I use Sony A7riii and Sony 200-600mm. For now I have been doing bird photography in my backyard. Do you recommend using APSC setting turned ON or shoot full resolution and then crop?

@Thevikingcam 4 года назад

On 4K 43" monitor the a7IV is clear winner here. I could tell in right away. The difference is actually big.

@leonkirkbride6559 4 года назад

Very interesting video Mark thanks. I'm currently a D850 and D500 user and really interested in trying the Sony . Originally I wanted the A7Riv as a higher res upgrade for my D850 but after hearing the various focus issues for fast BIF its put me off . I'm now looking at the A9 mainly for that excellent focus system. The 24mp was the main concern as I'm usually cropping heavy with the D850 but this software with the A9 may be a good compromise especially with that A9 focus accuracy

@mattstout804 4 года назад

Hey Mark, interesting topic! Curious if using the same camera but changing the image size taken (S vs L) would produce similar results if ran through Topaz. Image wise since you aren’t switching cameras they would be more apples to apples.

@geniked 4 года назад

that is impressive software, i use a nikon d7500 with a sigma 150-600, i believe its 20 mp how large or prints do you think would be the max to get one of those metal prints? i've wanted to get some made but never committed to doing thinking it wouldnt turn out .

@joesb1 4 года назад

Mark, great idea on your comparison of AI enlargements versus us A7R4. I like the A9 for speed and lower noise. I’ll try to uprez an A9 image. Question: What is the name of the metal print shop you use in Florida. I have been wanting to try a metal print on some images. One is an iPhone image and it will need to be increased in resolution to get the size I want.

@halkzorx 3 года назад

Hmmm, you just saved me from buying a A7RIV alongside my A9, after seeing the cropping power of the A7RIV at work whilst photographing White-tailed Eagles yesterday! I recently purchased Topaz Utility Pack which has the Gigapixel in it but hadn't used t yet. Now I will!

@Randyfhutchison 3 года назад

Great video. I didn't see a link to your print lab? I'd like to give them a try.

@tonysvensson8314 9 месяцев назад

I did a similar comparison with and without a 1,4 tc with a tripod on a static, not living, subject next to a test chart. I used the same camera and upsized the image taken without the tc with 1,4 x in gigapixel. The result was that i couldn´t see much of a difference (at 100% view in Phoroshop). Maybe the upsized image was a small amount clearer with a little bit better sharpness but that could just be due to the sharpening within Topaz gigapixel. In any case, I don´t use tc´s very often nowadays!