Can this old lens become legendary? I think it can! AD: Regarding HelloFresh, use code POGDIYJULY16 for 16 FREE MEALS across 7 boxes + 3 FREE GIFTS at strms.net/hellofresh_diyperks
Projection lenses in different forms. The fewer glass the lens have in it the greater the image circle. Meaning one glass have a huge image circle. allthougth not sharp to the edges
@@PerfectMalcolm And colour grading in sepia, with the tonality and modulation transfer of a mid 19th century wet plate. Start the scene like a still life, and it would look just like a very old photograph. No cross-fade, no dissolve, the old photograph just begins *move!*
Optical engineer here. I design cameras, telescopes, and lasers. First, excellent job with this project. Want to mention the light rolloff you mentioned is not vignetting but scattered light falling off with the cosine of the angle to the lenses. Vingetting refers to the light ray bundle being clipped. Your Fresnel lenses are cosine correction lenses. Your explanation of the physical effect was correct and you expertly found the solution. The images you captured are incredible. I want to design an f/5 lens that makes a 50cm diameter image circle this weekend. I also love old optics. Especially admire what could be designed prior to CAD. Same with old famous bridges like the Golden Gate or Tower Bridge.
This is slowly transitioning from a DIY channel into an engineering / automation / robotics channel with a thin veneer of DIY, as Matt gains more and more experience with power tools and 3D printing. Every build is more complex and professional looking than the previous one. I love it. At this rate, in a few years he will be building Mars rovers and fusion power plants in his back yard.
the wild thing is that it's still doable at home. Like cutting some metal and simple 3d printer maybe able the price range of some, but it's not absurd to have access to those kind of tools at a maker space or at home
If you can do it yourself the field doesn't really matter. Skills required to replicate this are not very unique, specialised or sophisticated for that matter.. Anyone can do this provided some cash and access to 3D printer. The hardest part is to source similar lens as those are very old and uncommon nowadays.
As you can see the space time is already curved nicely but you would have to be extremely close to observe the event horizon . Thanks to vignetting we need to add another fresnel lens and it will allow us to take a picture of the Hawking radiation.
Fun fact: Even nuclear fusion is extremely inefficient. All other methods of energy production are dwarfed by the energy capable of being produced by black holes. The tidal effects that cause matter to heat up to extreme temps release tons of energy, making a black hole “dyson sphere” of sorts about 60% efficient, compared to nuclear fusion’s ~1% efficiency. Don’t believe me? E=mc^2
As an ex film/tv/documentary cameraman & film maker with a deep interest in physics, I can say this is absolutely amazing!!!. I once owned a WWII aircraft camera lens which had a very long focal length (30" or so?) and a diameter of about 6 inches. I got rid of it years ago because there was no technology to make use of it again. but it may have had a higher spec than the lens you used Matt. Keep going you and your projects are priceless (yes that word has other uses)
@@WRGQWREDit wouldn't because light should print image at something to be seen. I'm about to try matte lamination film. I'm experimenting with lenses for a long time so i want to try it too
This is absolutely incredible Matt! As a photographer this is one of the most fascinating projects I’ve ever seen. Would love to build one of these one day! Fantastic!
The wide aperture has a really gorgeous effect. I am also a big fan of swirly bokeh , and this lens has a good dose of that too. It is quite similar to the effect of the Helios 40 85mm f/1.5, Zeiss Biotar 58mm f/2 and the Soviet Zeiss copy, the Helios 44.
@@slartibartfast2649 the costs associated with this build vs. the output you get is remarkable. Compared to what a pro lens would cost, the value this brings is incomparable .
@@raveenwijayasinghe7700 Adapting old projector lenses is another viable way which has the added bonus of being on a camera, rather than a massive box.
the image is so comfortably strange.. it truly is like nothing i´ve seen before trought a screen. its honestly feels like if i was there at the moment the images were taken. Amazing work, thank you for sharing it online (Sorry for my possible bad english, its a second language for me)
This is next-level. As a photographer and former camera salesperson, I really think some people would buy this. If you take it to a studio or portable studio the size isn't that bad, but the results.. Just wow.
I built one of these in 2013 with a Kodak Aero Ektar, which has a 5 inch imaging circle -- The whole setup was about the size of 2 loaves of bread. Large format lenses are easily found online!
I think people without an understanding of photography will truly gradp why this is so amazing. I couldn't stop staring at the paused photographs, they looked very ephemeral and strange but natural too, it's hard to verbalize.
focal blur in real time, more than just still image objects, if movie film lens, I would imagine any sort of camera would work as long it uses light at the media of use the more wilder types infra red, ultraviolet, I do like toy town look the this sort of lens gives 🙂
wren just called you out on not getting around to releasing the build plans for this, now you gotta do a collab video where you help corridor crew build their own one and film something cool with it :D
@@GauravSharma-dy8xv cant rememeber, i think it was one of there saturday react videos since theyre the only ones i ocasionally watch any more. RU-vids says i posted this a month ago, so could be anywhere from 4 to 7 saturdays ago. So one of those 4 videos.
The most surprising thing about this is the quality you get from those Fresnel lenses. I thought they would degradate the image quality a lot, but at least in the video it seems fine.
@@makipri Looking at the video in 4k, the image on the subject seems to be pretty clear, while the background has a decent blurring effect to it. I imagine the hard part is making sure the subject is in JUST the right spot, and doesn't move out of the intended range to really get the full benefit
In theory, the bigger the projector glass the sharper it is when converted to a Full-frame or smaller. Instead of magnifying, it demagnifies. Quality is a factor, but even cheap glass can get reasonable sharpness
@@makipri The nice thing for wedding work is that it will really eliminate any issues with the venue for the formal shots. This would be wholly unique.
I would never have expected such nice image quality from such a system. And you almost just glossed over making those super clean paper concertina bellows! Fantastic work!
it is mostly because we are watching this at a very low resolution. My guess is that it isnt that good in the realm of 50MP cameras, but for video, even 4K, it is most likely enough.
@@clonkex that was exactly my point. These resolution are very low compared to what a medium/large format camera can resolve. So while the current setup degrades the image quality, the original image is so big that most of the flaws are invisible in video. But if I placed a Hasselblad in there to shoot a 100MP image, we would see the paper texture for sure. But as I said above, for video it is brilliant!
@@AlainPilon Ah, I think I see what you mean now, though I'm not really sure what "paper texture" you're referring to. So to clarify, you said "watching this at very low resolution". As primarily a gamer and video consumer, I don't consider 4k to be "very low resolution". In fact I would call 4k "very high resolution". Perhaps you're a photographer and your comment made sense, but in combination with the fact that you don't typically "watch" photographs, it just sounded like you were either A) assuming I was watching at low resolution on my phone or whatever, or B) calling 4k video "very low resolution", neither or which makes any sense.
@@AlainPilon my guess is you are into print media? But yeah, 99.99% of people dont even watch on anything above 4k and majority of them watch on their phones. So this really works there.
Matt, Wow. I am amazed at what your construction has achieved. In addition, to the astounding depth of field, the ability to capture this level of image quality (precision) through any digital format is a plus. An amazing upcycle!
This, to me, is probably your most impressive project so far - and that's saying a lot. I never knew such a lens was physically possible to be used with a digital camera, let alone as a DIY project. I was expecting the image to be washed out and with extreme chromatic aberration, like most ultra wide aperture lenses (especially since the light must go through a film), yet it looks perfectly clear and free of aberrations. Incredible. Why has nobody done this before? Sure, the size is somewhat impractical, but surely there are some niche use cases in filmmaking where it would be extremely desirable. And to think something so innovative was done not by a company, but by a DIY RU-vidr!
it's a very niche usage ...very rarely used and when someone wants that specific effect, they usually rely on post-processing/green screen to achieve it
@@Ezio470 It’s not that niche. You have to think in terms of scale, use ability, and price point. Camera manufacturers still have to sell it and when the Red One and original Ursa was succh a beast on set to handle, this wouldn’t work in large scale productions. The Alexa LF is the closest digital equivalent I believe. But there are a number of film ways to get close to this specially large format going straight to negative. But if you’ve shot even stills large format, you know how much time it takes to actually setup the shot to take it. Not a quick process
@@STDavis-em1df the Alexa LF's sensor is the same size as a full frame sensor... 36.7mm x 25.54mm for Alexa LF vs 36mm x 24mm of standard "full-frame" mirror less cameras... So it's not really going to be anything special for this application. In fact the "medium format" GFX 100 would make significantly more use of this lens with its 43.8mm xx 32.9mm sensor, or better yet a Hasselblad H6DC with a 53.4mm x 40mm
honestly it's not even particularly impractical - movie production rigs can handle something like this quite easily. in fact, this might be incredibly useful for film production.
Man... what is there not to love about this channel? - Great video production - Really creative ideas - Skillful and inventive execution that actually works - Really friendly presentation I seldom leave a comment but wanted to say thank you for the amazing content!!
@@jotham97 i think he also greatly benefits from the fact that he isn’t churning out a new video every week just to keep the algorithm happy. he puts in some serious thought into every build which is always appreciated
Wow this is actually such a good idea - us photographers obsess over sensor size because of the assumption that direct-to-sensor imaging is the only way to go. But builds like this demonstrate otherwise! The image quality is fantastic!
Matt, you've gotta do a telescope project at some point. You've got some of the coolest diy optics projects out there, and I'd love to see what you could do with a telescope.
This is Amazing and it looks like you are shooting miniatures infact I knew that to get that effect the camera should be very big and thats what you just did here, I won't be surprised if you get approached by some production company to use this camera in music videos or something like that
This astounding! I was having a conversation with a friend about the future of cameras and he was saying they will get smaller over time, to which I said that would be fairly impossible - especially when you take into account the desirable bokeh that everyone is seeking. This goes to show that the smartphone will never compare to a real camera with a big sensor. Amazing work!
Didn't expect much (on the images I mean, your builds are always amazing) throughout the building portion of the video. Then the video it captured just blew me away. Very ethereal, strange, and weird. Mostly because I've never seen this quality in a video before. Very very spectacular
@@romancotton8536 That's also impractical lol. Medium format cameras are out of the price range for most people, and the biggest film camera sensors used in Hollywood are basically just full frame sensors but still cost $60K+
The incredibly large lens makes everything look like they're miniaturised I love the look, throws my mind for a loop, thinking if the things shot are tiny or life-sized :D
@@igbatious It produces the same sort of effect as a tilt lens, but by different means. The miniturization effect is caused by the depth of field to be much smaller than that of our eyes at similar distances. Our brains interpret far-away subjects having similar focus to the background as "large" and subjects with different focus as the background as "small" as these normally happen when things are far away from us and close to us. Far away things are bigger than they appear and our brain compensates in our perception, likewise really close things just look big because they are so close and the brain compensates. When something that is actually far away appears to have a different focus than the background our brains interpret it instead as something viewed close up, and so our perception is changed to think the subject "must be" really tiny to be so close and yet so small in the frame. Tilt lenses achieve this by laterally rotating the plane of focus to manipulate this look. The lens created here *actually* has the shallow depth of field.
@@joelsmith3473 The tilting *used to be* employed to *counter* the shallow depth of focus, by tilting the focus plane to intersect with the most of the faces in a group photo, or make it parallel with the ground, a table, a wall, or whatever. These days, people know of the tilt lens as a novelty, used for the opposite purpose, to call attention to the effect itself.
Bro really built the blender camera irl. On a serious note, this build is amazing and the subject seperation quality of the lense is amazing, if you were able to make this into a product I think a lot of videographers would love to purchase it.
Tell me you don't know anything about the photography world without telling me.... ULF is a thing people have been doing for over a century. Capturing ULF images digitally is something people have been doing for over a decade.
@@benmiller537 curious how they do that? Is it all post-processing object detection wizardry or are there physical ULF video cameras with massive sensors / sensors stitched together for those prepared to pay? Or just more refined versions of the sort of rig from this video?
Bravo! I'm in the process of building an Afghan Box Camera and would love to shoot with this lens. Some of these images are reminiscent of the tilt-shift lenses. Imagine the fun you could have if this lens was mounted on a front standard that could do rise/fall/tilt/shift. That shallow DOF would make it quite a challenge. I picked up a different "barrel" lens to play with that's much more readily available, if anyone wanted to play. It's the Fujinon-Xerox lens that's used in some of their larger models, easily procured (affordably) through Ebay. This was an amazing rig build! I usually only watch photography videos, but I definitely need to give your channel a look. As someone who has built a few cameras already I certainly learned from this video. Thank you.
This lense has a stop -motion movie effect to it and its fully natural as if our ordinary world have become miniature enough for it to be captured on a 24-85 mm lense, absolutely stunning
@@stowgood yes tilt shift effect in a more poetic and understandable definition, yet this lense did it without a tilt & shift cabablity also sh*t i never thought someone would read my comment rather than having this much likes
It's incredible how you make such complex things seem so easy. The results are amazing. It's really like some kind of miniature scene. The focus seems a bit off at times, but still really amazing results.
This is awesome. As a photographer I was so impressed by the image that the lense produced. Amazing job. I'd love to see some videos in the future with this lense.
That reveal was literally breathtaking. This was your best project to date and I'd seriously recommend looking into making a commercial version of this. Releasing a how-to guide is great, but those kinds of results are contingent on good materials and really tight tolerances in a way that'd make a commercial version really valuable. This feels like it'd be a staple on music video sets.
My god, Matt. Those images are stunning. I've said this a million times but I hope that at some point you put up some of your creations for sale. I can think of quite a few photographers would absolutely buy this.
Downright astounding. I think a big part of the culture that goes with DIY is "nothing goes to waste" and this project sits at the epitome of that belief. This isn't just repurposing for the sake of saving something old (which is still a noble cause) but instead it's seeing the beauty in something that's old and forgotten and using that beauty to inspire something incredible. Art in it's highest form.
Absolute masterclass. As a photographer for a few years I would be suprised if you wouldnt get some calls from hollywood studios to deliver a few such lenses.
To be fair, Matt obviously isn't the first person who tried out something like this. I fear that a setup like this just isn't practical for commercial use. Especially when it comes to fast movement or low light scenes.
@@achannelhasnoname5182 Your realize they use different lenses for different scenes, right? Something like this could absolutely be used for certain kinds of sequences.
My old church used to have something like that to project song lyrics onto a big wall so that we could read them and sing along. There was a person there, near the "projector" that was switching the sheet with the lyrics every 30 seconds. It sounds so archaic to think about it nowadays. They removed it like a decado ago, and have installed a big, modern projector. I don't go to that church anymore, but this brought back some memories! Thank you, great video
Mind is blown. This would be an amazing cinematic lens for movies. The shallow depth of field is a strength and a weakness but it is a very unique result that would work artistically for lots of things.
I’m imagining some big budget movie maker seeing this vid and actually using the idea for a movie within a few years. Similar things have happened before...
I don't know what kind of formal training you might have, if any at all, but as a last year engineering student at one of the best engineering colleges in the world, I am absolutely floored. It is awe inspiring how you make such well developed builds. Their variety and detail, amazing. The insight and problem solving, amazing. The editing and scripting, amazing. I would much rather have spent a semester learning from you than some old guy with a million useless accolades. How you develop It is DIY, I guess, but you seem to have the brainpower of an entire division of engineers.
As someone with an engineering degree, college barely prepares you ready to do practical stuff. What he is doing is years of curiosity and practical experience, and a major desire to learn + be okay with failing.
WOW! As a photographer I gotta say I started watching this video very skeptically thinking you would get some horrible quality gimmicky result, but getting a 35mm f0.4 equivalent is actually pretty insane!!! You sir, amazing job!
wow... everything looks like a macro image. This is truly impressive, I was utterly underwhelmed at first but the final results speak for themselves. It's borderline magical looking.
It is really amazing the DOF, it reminds me a lot of the brenizer effect. i have a proposal, would you dare to make a second version? adding a diaphragm? and even a third version emulating a tilt and shift lens? Greetings from Argentina.
I was just thinking the same about tip-tilt. By adding a way to tip and tilt the lens, the camera could make use of the Scheimpflug principle whereby the focal plane is rotated rather than just moved back and forth. You could take some really interesting and different pictures such as a double portrait with one person near to the camera on the left of the frame and the other person in the distance at the right, then by tilting the focal plane to run diagonally between them, each person could be in focus while everything else in the image is blurred out.
Great Lens. Here is an idea to continue this project in a new direction: put in some edge detection by CV (or focus peaking to simulate), focus through the range and record all the edges, now you have a unique 3d scanner.
@@MStrong95 Practically and demand. Also there's not a lot of surplus camera sensors a out there because the sensor is the hardest part to manufacture, it's extremely sensitive to malfunctions and that is the reason why crop sensor cameras are much cheaper and therefore more popular, area of sensor means more material, which means higher chances of defective pixels.
Fantastic video with a stunning effect. I absolutely love the look of this and would gladly use it in specialized cases at weddings. I think if you extended the functionality you could link your focus motor to a lidar rig and get pretty fast and accurate Autofocus on frame-center subjects.
This is crazy good. Miniature scenes are making a comeback, especially with low-budget films, this could be revolutionary in getting those shots. Those results looked like props on a set. There would be no need of having two plates of characters and the background for such scenes saving a ton of time. This is very good. Also, I perked up a bit when I saw you're video on my feed, always gets my adrenaline flowing.
The quality and uniqueness of the images is amazing. Honestly, the images have almost a tilt-shift type feel to them making the subject of the photo stand out in such a unique way. I love what you made!
Holy damn I knew there was gonna be a lot of bokeh but this exceeded my wildest expectations. Also I almost cannot believe that despite having two fresnel lenses in there, there's zero visible chromatic aberration - do they cancel each other out that well? Initially I thought you were going to use some ridiculous large format image sensor - like from an observatory telescope or disassembled x-ray sensor panel like the one featured in one of Applied Science's videos - although in both cases the image would've been black and white as sensors in these use-cases don't feature a bayer filter. But this intermediate method with a diffusion film is genius and works way better than I thought it would! I hope this will inspire some filmmakers to make their own and do some cool stuff with it. Here's one idea how to take it to the next level - make it a tilt-shift lens as well - you already have the bellow which can allow some movement, just have to change the mechanism to add translation and rotation to the lens.
I notice chromatic aberration, but maybe I am imagining things. I saw red aberration in the first shot at the edge of Matt's hair and green aberration on the face of the cow. It is also not a very sharp lens. Typical of the era it comes from, before computer designed lenses ironed out the swirly bokeh and softness, and coatings fixed the low contrast and aberrations.
@@azureprophet my point is that fresnel lenses by default have huge amounts of chromatic aberration, I thought it was gonna be a total disaster but it's pretty much not visible at all!
THIS IS ABSOLUTELY ASTOUNDING. That unbelievable amount of depth of field !!!!! Has to be one of the best channels I accidentally stumbled upon while procrastinating at 3 am.
Really great execution. A friend and I used to do things like this years ago, but not nearly as cleanly. We have a 911mm f8 lens (it's absolutely massive) which makes an imaging circle around the size you're getting with your lens. One thing worth noting is while shooting through diffusion is great for geometry and light transmission, you do lose a little bit of the potential shallowness. It's always a trade off: the more diffusing the diffusion is, the less light transmission, but the shallower the depth of field. The less diffusing the diffusion is, the more light, but the deeper the depth of field. One thing I've always wanted to try is to film the lens projection bouncing off of a white surface with a camera fitted with a tilt-shift lens to compensate for the off-axis geometry. That would give the full shallow DOF of the lens. Or just place some large format film there.
I wonder if, with the 2 fresnell lenses you actually still need the diffuser? Not sure as I am not an optics expert but it seems to me from a pure physics POV that it should work as all the light beams should converge. You might need to bypass the camera lenses though and just pop the sensor in the right place. Perhaps taking the lens off an SLR type body would do the trick.
Rather than using a white surface, use a mirror. "White" actually still diffuses a ton of light, while a mirrored surface will return the image in all its glory. Or do what Andy suggested: simply refract the entire image into the camera. That's more or less what you're doing anyways; the diffuse layer is really only a tool to determine the size and distance your lenses should be from the episcope. You don't even really need to use two big lenses, just replace them with one that focuses the light from the episcope lens into the sensor. To be honest, the more I think about this, the more I realise this isn't nearly as 'revolutionary' as Matt makes it seem and it's really something that's been resolved decades ago. You see, the one thing that Matt doesn't touch on is the fact that the $200,000 lens is much, _much_ smaller and lighter than his enormous and unwieldy contraption. The reason we use it, and not some weird mega light box that looks like it came from the late 19th Century, is probably because those who use cameras a ton value the ability to operate their cameras in a multitude of different environments and conditions much higher than cranking out that _tiny_ bit of extra focal depth that makes everything you're filming or photographing look like it was done in front of a greenscreen anyway.
