Hello everyone and welcome to BD Observatory! I'm Bogdan Damian and as a hobby astronomer I like to talk about astronomy and astronomy related topics. Here on my channel I upload quality videos about eyepieces, telescopes and telescope accessories every two weeks. If this sounds interesting to you, then check out my videos and also consider subscribing to my channel. Thank you for your support!
I purchased a similar spectacle by KASAI Trading Company, Tokyo Japan. Comes with case and neck strap. You can definitely tell the difference. Very easy to scan the sky.
For anyone looking for a 1x red dot finderscope, I suggest looking at gun dot sights. They're usually around the same price (if not cheaper) and normally substantially better quality. There are adapters you can get to adapt to a dovetail mount which are fairly cheap.
As a first telescope, I picked up a starsense dx5. I've used different sizes of binoculars for 40 years. So far I'm very happy with it. I've had it for 3 days, saw very sharp images of Saturn even with city lighting. M42 also looks nice, again given the city lighting I'm in. Big reason for the dx5 for me is indeed grab and go. I read many reviews, many opinions and a recurring theme was the easier it is to use and transport the more you'll use it. So for a first go round (and a learning tool) this scope is great.
I have read very good reviews of this SvBony model along the lines of yours, but I have also read that it presents problems of lack of intra-focus when observing with long focal length 2" eyepieces or installing a 2" diagonal that extends the light path... Have you verified that this is the case?
@edufau815 I never had any issues reaching focus using the SV503 102ED in combination with 2" eyepeices and 2" diagonals. The SV503 has a maximum of 116mm of back focus. This is obtained by bypassing any adapter and screwing in the diagonal straight onto the focuser's draw tube. The length of the light path of a 2" diagonal, like the 2" BBHS Prism diagonal from Baader, is 50mm. This means that there shouldn't be any problems whatsoever with reaching focus when using 2" eyepieces with this telescope. There is plenty of back focus to play with.
Just a quick note at 9:30 - This is what makes the Skywatcher Flextube systems a bit special. Their struts being collapsable is one huge perk, but another is they have 2 notches where they can stop extending. The first you encounter (about 20cm from full extension) is for binoviewing and to have more back focus. It's a neat system that even Skywatcher don't talk about. I realllyyy like Baader's accessories. The fit and finish is always excellent, but more so, I love their amazing thought to every part of everything they seem to make. They add threads to everything, which I love so much.
Just boughT the Orion version of this on cloudy nights for $80. They've been around for a number of years by different manufacturers. Probably all made at the same factory.
@Amarok347 A 4" ED refractor like the svbony sv503 102ED if you value portability and planetary observations or a 8" Dob like the 200P from Skywatcher if you care for deep sky as well
@grillmeisterflash If you can live with the short eye relief, then it really is a great zoom eyepiece that works very well with refractors and large dobs. Tested it with a 4" refractor and a 12" Dob.
I really like how you don't say everything you review is wonderful without flaws. Reviews are much more useful when they are balanced and highlight some flaws in the item, whether they be intrinisc to the design (eg central obstruction) or problems with a particular model (eg build quality). Your reviews are helpful!
The central obstruction doesn't actually a significant amount of light (compare the surface area). The real issue is it's effect on contrast. The C5 is a great little scope if you use good widefield eyepieces.
@lynnetracy999 Hi, this depends on how well the telescope can hold the collimation when you move it. I usually collimate mine every 4-5 observing sessions.
is there a way in the onstep software to tell it the gearing ratios of the mount? Looking to make my own mount, and was looking at getting the onstep v4 to control it, just wasnt sure if one could customize the 'steps per degree' with it or if its set by the controller makers.
I didn't understand iam used to looking at the target on my cheap collimater how do you alighn the reflection do you have to look up the inside of the focuser tube
@patterdalezipsuzilil Yes you collimate by looking through the pinhole of the collimator and look for the center marking on the primary mirror. It needs to be centered with the reflection of the collimator.
So i will test this with a dobson skywatcher classic 1200/200. I read that this eyepiece is not suitable for newtons with high focal length so im curious to find out why. Anyway, I got it for 80 euros so i think it's a steal right ? Nice Video though :)
Excellent comparison Bogdan thanks for this. I'm curious, does one binoviewer produce a brighter image than the other? Or are they equal (assuming ofcourse same scope snd eyepieces)?
I can never go back to traditional bino-viewers having purchased a linear bino-viewer they're manufactured by long perng and sold by many distributors, Omegon,Orion,Bresser, Founders,etc,ect,they even sell them under their own brand name.
You should do a comparison between the Nikon Aculon 10x50 and the Action EX 10x50. The specifications are very similar, but I think the image quality of the Action EX is much better.
Another great review, and one which I wholeheartedly agree with. I have this exact pair and they are keepers for sure! Keep up the great work on your channel 👍
Thank you for this review. I often use binoculars and monoculars for stargazing and comet viewing. I have poor 3D vision so I don’t get the full benefits of the stereo vision. I was interested in buying these binoculars after some of my viewing equipment was stolen. I really like using the Opticron Explorer WA ED-R 8x42 monocular to check out viewing conditions and spotting objects in the sky. Unfortunately that was stolen too. The FOV, image quality, and portability were amazing for the prize. It fit easily into my pocket and I would bring it with me along with my telescopes for viewing.
I ordered this eyepiece, and since all my scopes are f/10 and above these kind of eyepieces work wonderfully in them. I no longer use the big short focal length dobs, i do have a C8 but my most used scope besides that is a f/11 refractor with a 2" diagonal, it gives a wide enough FOV and plays well with all my eyepieces....these 70 degree eyepieces look great under these types telescope. I have a Bresser 30mm 70 degree ep and it's my favorite right now but hoping the Svbony sv136 will be just right! 🤞
Hello I am very interested in your opinion. When using spotting scopes with astronomical eyepieces, is it better to give preference to eyepieces with a wide angle of view or with a flat field, but a smaller angle of view? For example, eyepieces from SkyRover have 2 copies: one 10 mm ultra-wide at 82⁰, and the second 10 mm ultra-flat, but a viewing angle of 60⁰. The question is, in which eyepiece will the picture be more informative? Which eyepiece is more suitable for terrestrial observations? 😊
@arthurkhansoverov5818 Hi, since the eye only can about 72° at a time, I personally preferer my eyepieces to stay around that mark or below while preferably they offer a flat FOV. I believe that a flat FOV becomes more important during daytime terrestrial observations. The viewing experience as in long eye relief and the ability to move your eye to scan the whole image without producing dark spots is also very important.
Hi, interesting video, I still like to amaze myself with visual observations looking at distant DSO objects with my own eyes, so I bought an Astronomik UHC filter for my polluted city sky. Perhaps too harsh for my small mak 127 (would a Astronomik UHC-E have been more suitable?), but it really does make the difference between not seeing and seeing a distant planetary nebula. Do you think an Astronomik CLS or a Baader Neodymium for galaxies and distant clusters would be useful? Do you have experiences with this?
@frzguida Hi, I think the UHC-E wouldn't have made a big difference compared the the normal UHC. Unfortunately I hadn't had the chance to test the CLS or the Neodymium yet, so I can't comment on the improvements they bring with them. But I plan on testing them in the future.
Hi, just watched your video and it got me wondering what 3 eyepieces would benefit me as a person that wears glasses and owns a C9.25 SCT. I’m starting to get back into visual observations. I’d be looking at the upper mid range to lower top end price bracket. Thanks Dean
@deanannable1294 Hi, for the short focal range, I would get a 7mm DeLite from Tele Vue, then for the mid-range the SV230 SuperZoom from Svbony and for the long focal length option I would get a 30mm 82° from Explore Scientific. If that is still too short for you, look at a 41mm Panoptic from Tele Vue.
I have found that at the end of the day “aperture size counts”, only if it’s practical to use. My 100mm refactor just doesn’t compare in light gather and resolution to my 250mm Dobson. Where the refactors come into its own is that it can be used at the spur of the moment, taking only a few minutes get up and go, where the Dobson sit in the garage waiting for a planned activity.
I bought one of these used as one of my first more expensive EPs. I find it very useful for certain applications. The best by far, is asteroid hunting, which I do from my Bortle 8 house. The relatively wide FOV at 24 mm allows me to find make sure the "sight picture" matches Sky Safari. I then mag up to 8-12 mm, which allows me to see one mag deeper most nights. (I didn't realize this was a well-known physics phenomena until later). II think it is reasonable for the planets. Nice on the sun as well, in both white light and H-alpha. The views are crisp and the contrast is good. It folds to a dedicated wide FOV low power eyepiece (I use a TV 22 mm and 31 mm for my 10 and 16 inch Dobs respectively). And I like more mag when I can get it on the moon and planets. My scopes can normally tolerate a TV Delos 6 mm and if I am using a smaller scope and/or the conditions are good, I use my 4.5 mm Delos. Like someone else said, trying out different mags over a few seconds is a great way to understand how light pollution, magnification and limiting mag all work together to change the quality of the view. Lastly, it certainly is a very flexible tool if you need to travel light.
In the case of 1000$ budget. Why do not buy a 8" dobsonian and spend what is left with good eyepieces ? In that case, keeping the 30mm GSO SuperView eyepiece, which 2x barlow, and other eyepieces would you buy in the Explore Scientific catalog ? The Barlow can be another brand.
@danielbarbieri8199 It's definitely a good option as well. Going for eyepieces from explore scientific is a good way to improve the views. They are excellent upper mid tier eyepieces.
Received mine today, altitude and azimut scales are inverted. I would say yours is wrong? Double checked it in video and it is diferent on mine, i guess they corrected it. When i turn my azimute clockwise pointer shows in 0° -> 360° direction. Altitude is also logical, when you point it up it goes ->90°. Logic is same for southern hemisfere right?
Dobsonian telescope is the best affordable telescope one can buy. It's a very good customisation basis. And at f5 or f6 very versatile tools. From beginner to advanced everyone will be happy with a dob. 8" seems to be the more versatile, but with a flextube you can go to 10" if you can afford it.
Here in the US, the Baader is $50 cheaper ($310 vs $360). Also, svbony has sales frequently, so you could probably hold off and get it for cheaper. For $410 you can get the Baader with the 2.5 barlow package which increases its flexibility.
