If we study how a lens actually works, this method is actually effective. In addition, adding a UV filter will also help eliminate chromatic abbreviation. Well done!
What does the UV filter do for the aberration? I read that it was for analogue film and now use UV for protection. But I've noticed mainly that it reduces image quality. If you have bright lights shining in the filter (like headlights of a car) you see extra small flares and reflection on the filter.
I just got one of these lenses last week: waiting for an adapter ring to match my a7iii. I'll try this. I tried my 30 year old Minolta 135mm zoom on the Sony but the fringing disappointed me. I don't recall seeing fringing back when it was on a film Minolta. Hmm. For these 800mm jobs someone lined the depth of the tube with flat black material saying it reduced stray flares. Don't line it so deep that it jams the sliding, twisting joints. FYI.
This video needs waaaaaay more visibility. I tried it out and you were 100% right, these cheap super-telephoto are usable as long as you create an aperture mask, tripod mount, and use a remote/delayed shutter. My shutter speeds are a bit slower now because of the reduced light, but the clarity is much better and the chromatic aberration is basically all gone! I did it using a $65 Ultramaxx brand one from amazon.
I thought this was a joke at first, so I applied the idea to my Centon 500mm Mirror lens, which BTW are know to have soft images and prone to CA. The results, although not totally removing CA from high contrast subjects, the CA and sharpness were improved 100% All I did was get a 72-58mm step down ring. 😊
Amazing way to address chormatic aberratic. I supposed, playing with the hole diameter, it could improve chromatic aberration at fixed focal lengths (400 - 800mm).
It's so crazy. One of the biggest problems with these cheap lenses is the chromatic abberation, and now it seems like the only thing you can change. But removing it makes the quality several times better, and if you're not a pixel peeper or don't care about the quality being perfect, this looks like the best lens now.
That is really sharp, i haven't seen anything close to this in other reviews. Great stuff! What is the inner circle diameter? Also, is that a UV filter to hold the paper cutout or just plain glass filter? Thanks a lot! Will be trying this myself as soon as my lens arrive
Thank you for watching... my ring has 25mm inner circle diameter and stopped down the lens +/- - f 1,5. There is also a mathematical formula for this - but I did it "by feel". it's a neutral filter to hold the ring.
wow thanks for nice tweak and makes sense because glass lens edges cause chromatic aberration. the result looks so professional. Did you use any filter or editing?
Hi lucky haider thank you for watching! No, I do not use a special filter, the images and videos are not edited .they are published here as they come out of the camera(JPEG). on my computer they are even better because TH-cam compresses the data. I just use a clear filter to hold the ring. The rooster for example was shot on 2000 ISO,1/250sec and Tripod.Photographing the moon or buildings 100 miles away are bad examples because the distance is difficult to do even with expensive lenses.
Hello, great idea but I want to know what the black material is, is it sheet? Sandpaper? Or what it is and I also want to know how tall the inner circle is, since I also have the same lens, thank you!!
Hi Ziach, thanks so much for this helpful, great idea :) Question: Is there an aperture sweet-spot for your cut-out solution? What hole size would maximize detail without going too low? P.S. Did you have a good laugh there? (-;
in the beginning i had a ring with a smaller diameter,but there was hardly any light on the sensor. but i think it was a bit sharper with it. try it out.😁👍
Would there be more videos of birds using this lens?? I intend to buy one and would like to see the quality and difficulty in making videos with it. grateful.
I read that a UV filter will also cut back the chromatic aberration. I have one arriving from a friend to try out before deciding if it is what I want.
Hi Arthur Thank you for your comment! It's interessting, I've never heard about this, let us know, if it works well! I use a clear filter to hold the aperture ring.The ring also improves the sharpness a little bit. regards🙂
Hi Miguel It's a Lightdow,but I think,that it doesn't matter which one you buy,because this lens exist under a lot of brands and I think,theres only one producer in China.
Hi Francisco Unfortunately, I am not a scientist,but you can see it with older lenses,if you stop them down,the image quality improves. This lens is very simply designed,but has a fixed aperture,the quality can be improved with this simple trick. The effect is a little bit on sharpness and contrast but more on CA. best regards
@@ziachschorsch1743 makes sense, thank you. For some reason I hadn't thought of that as stopping down. I just got my lens today. Much better than I thought it would be for $80 (there was a coupon)
@@ziachschorsch1743 I purchased a 67mm and it didn't fit tight to the glass. I think I need a 62mm to hold the ring tight to the glass, but thanks for the feedback. The chromatic aberration is horrible, does the ring really work that well and I think you said that you cut the center hole at 21mm, 13/16 of an inch?
Hi Nidhi Thank you for watching... It's a Lightdow,but it exists under many names:Aukson,Jintu,Fotga,Hersway,Eulbevoli,Sharainn,Dörr Danubia... I think there are only 1-2 manufacturers in China - but I'm not sure. By the way,I would be interested to know if anyone has had the same experience like me? regards
If we study how a lens actually works, this method is actually effective. In addition, adding a UV filter will also help eliminate chromatic abbreviation. Well done!
What does the UV filter do for the aberration? I read that it was for analogue film and now use UV for protection. But I've noticed mainly that it reduces image quality. If you have bright lights shining in the filter (like headlights of a car) you see extra small flares and reflection on the filter.
I just got one of these lenses last week: waiting for an adapter ring to match my a7iii.
I'll try this.
I tried my 30 year old Minolta 135mm zoom on the Sony but the fringing disappointed me. I don't recall seeing fringing back when it was on a film Minolta. Hmm.
For these 800mm jobs someone lined the depth of the tube with flat black material saying it reduced stray flares. Don't line it so deep that it jams the sliding, twisting joints. FYI.
This video needs waaaaaay more visibility. I tried it out and you were 100% right, these cheap super-telephoto are usable as long as you create an aperture mask, tripod mount, and use a remote/delayed shutter. My shutter speeds are a bit slower now because of the reduced light, but the clarity is much better and the chromatic aberration is basically all gone! I did it using a $65 Ultramaxx brand one from amazon.
I thought this was a joke at first, so I applied the idea to my Centon 500mm Mirror lens, which BTW are know to have soft images and prone to CA. The results, although not totally removing CA from high contrast subjects, the CA and sharpness were improved 100% All I did was get a 72-58mm step down ring. 😊
I'm just thinking about buying a stepdown ring from 62 mm to 58, 52 or 49. That would probably be an easy and clean solution.
Amazing way to address chormatic aberratic. I supposed, playing with the hole diameter, it could improve chromatic aberration at fixed focal lengths (400 - 800mm).
It's so crazy. One of the biggest problems with these cheap lenses is the chromatic abberation, and now it seems like the only thing you can change. But removing it makes the quality several times better, and if you're not a pixel peeper or don't care about the quality being perfect, this looks like the best lens now.
impressive :) now paint it with black 2.0 😱
That is really sharp, i haven't seen anything close to this in other reviews. Great stuff!
What is the inner circle diameter?
Also, is that a UV filter to hold the paper cutout or just plain glass filter?
Thanks a lot! Will be trying this myself as soon as my lens arrive
Thank you for watching... my ring has 25mm inner circle diameter and stopped down the lens +/- - f 1,5. There is also a mathematical formula for this - but I did it "by feel". it's a neutral filter to hold the ring.
@@ziachschorsch1743 Damn, you were good
wow thanks for nice tweak and makes sense because glass lens edges cause chromatic aberration. the result looks so professional. Did you use any filter or editing?
Hi lucky haider
thank you for watching! No, I do not use a special filter, the images and videos are not edited .they are published here as they come out of the camera(JPEG). on my computer they are even better because TH-cam compresses the data. I just use a clear filter to hold the ring. The rooster for example was shot on 2000 ISO,1/250sec and Tripod.Photographing the moon or buildings 100 miles away are bad examples because the distance is difficult to do even with expensive lenses.
@@ziachschorsch1743 Great video. What specifically would be the problem if photographing the Moon?
Wow
That made quite a noticeable difference, worth the effort.
Does this lens provide full coverage on a Full Frame DSLR?
Edge blur can occur in full format, and I don't know if the ring darkens the edges... buy it and try it!😉
@@ziachschorsch1743 I did 😁
At 420mm, no vignette but at 800mm there's strong vignette with black corners using FF mirrorless.
wow! que buena idea tuviste
Hello, great idea but I want to know what the black material is, is it sheet? Sandpaper? Or what it is and I also want to know how tall the inner circle is, since I also have the same lens, thank you!!
:) please don't use sandpaper against your lens
Hi Ziach, thanks so much for this helpful, great idea :) Question: Is there an aperture sweet-spot for your cut-out solution? What hole size would maximize detail without going too low? P.S. Did you have a good laugh there? (-;
in the beginning i had a ring with a smaller diameter,but there was hardly any light on the sensor. but i think it was a bit sharper with it. try it out.😁👍
What is the size of that neutral filter?
What's the difference to just stopping down the aperture?
This lens can't stop down
Would there be more videos of birds using this lens?? I intend to buy one and would like to see the quality and difficulty in making videos with it. grateful.
I read that a UV filter will also cut back the chromatic aberration. I have one arriving from a friend to try out before deciding if it is what I want.
Hi Arthur
Thank you for your comment! It's interessting, I've never heard about this, let us know, if it works well! I use a clear filter to hold the aperture ring.The ring also improves the sharpness a little bit.
regards🙂
did it work? i am going to buy it if it does
What is the inner diameter of the cardboard, I bought this same lens and I want to do the same
Hi... I have a question, if I don't have a filter, what would you recommend to hold it?
Would there be more videos with this lens?? How far are you from the bird?? Grateful
+/- 4-5 meters
Omg voll cool 😎
Avez vous d'autres images à montrer ? C'est le fameux 420-800 de Dörr? C'est le même ?
I found a review about the dörr version (in german):
www.naturfoto-magazin.de/technik/2014/dezember/doerr-telezoom.html
Hello Friend, may i know the diameter of thread mount in that telephotolens, is there any step up ring can fit, cause want to use it on my phone.
It is 67mm filter thread.
So I'm confused do I need a 63mm lens filter??????
Hm... at my,I use a 67mm one
Hello, what brand is the lens, I have a Canon M50 and I would like to buy it.
Hi Miguel
It's a Lightdow,but I think,that it doesn't matter which one you buy,because this lens exist under a lot of brands and I think,theres only one producer in China.
good ♥️
Could you tell me name of lens. Thanks
This is a UV filter?
Can you explain why this works?
Hi Francisco
Unfortunately, I am not a scientist,but you can see it with older lenses,if you stop them down,the image quality improves. This lens is very simply designed,but has a fixed aperture,the quality can be improved with this simple trick. The effect is a little bit on sharpness and contrast but more on CA.
best regards
@@ziachschorsch1743 makes sense, thank you. For some reason I hadn't thought of that as stopping down. I just got my lens today. Much better than I thought it would be for $80 (there was a coupon)
What size is the filter?
67mm ...
@@ziachschorsch1743 I purchased a 67mm and it didn't fit tight to the glass. I think I need a 62mm to hold the ring tight to the glass, but thanks for the feedback. The chromatic aberration is horrible, does the ring really work that well and I think you said that you cut the center hole at 21mm, 13/16 of an inch?
Which lens are u using
Hi Nidhi
Thank you for watching... It's a Lightdow,but it exists under many names:Aukson,Jintu,Fotga,Hersway,Eulbevoli,Sharainn,Dörr Danubia... I think there are only 1-2 manufacturers in China - but I'm not sure.
By the way,I would be interested to know if anyone has had the same experience like me?
regards
You clearly had audio and didn't say a word so you get a thumbs down
Can you please share the name of the lens