First I must commend you on the actual presentation and making of this review, very nicely done. The journey with a plot twist was a fun ride. I'm having a similar experience with the adapter where the results really depends on the taking lens. Appreciate the mention and looking forward to part II.

Such a great review. As always. Informative and interesting. Love your channel!

Couple of things you need to realize when using adapters. It’s not always going to work the same in a lot of lenses and this has a lot to do with either one of a few things. How many lens elements the lenses has, how sharp the lens is and also what the front element of the lens looks like. Light has to pass from outside the lens and travel all the way through to hit the image sensor. Lenses themselves are design to try to keep that light bream as sharp as possible when traveling through the back of the lens, of course more expensive sharper lenses do it better. When you add an adapter like this you are adding and extra element that complicates things. Also adding another element to the element count also complicates things. For example telephoto lenses like 70-200mm 2.8 already have around 13 elements to go through, because of this they are also prone to side glare and bad flaring that can effect image quality, adding this adapter can just compound the effect. Also adding a Diopter is another issue. On most of them the quality and coating on the glass isn’t the greatest to that’s going to effect quality. Lastly in your issue with the sigma 50 also the way the front element is shaped can effect the light traveling from the adapter to the sensor, for example the curvature of the front element can throw things off.

Interesting review. While I am not a user of anamorphic lenses, I enjoy your presentation style and critical discussions. Thumbs up!

Enjoyed watching your journey with this adapter ! Thanks for sharing

Great review! I had same mixed feelings, until I've tried it with my Tamron 45mm 1.8 SP. Boy, sharpness and out of focus background were beautiful. Some nice anamorphic image coming out of this combo. Yes, there's still some green tint halo at times, must be kept under control. The closest it can get to the taking lens, the better.

Super helpful! Great job! Thank you!

Very useful video with practical usage. Thanks for putting this out. Sounds like you'd want really sharp glass like Sigma Art to pair with this and get normal sharpness. Might work with my Meike Glass for a really artsy soft look.

Really interesting watch and a very thorough and engaging review. I had high hopes for this adapter and it’s a shame to see that it doesn’t quite produce the same results on all lenses

I love this vid and I just wanted to say that this is really cool and I love this vid!

Thank you. Very informative. Subscribed.

Perfect for the S5II or S5IIX, as the softness will help the almost too sharp image sensor.

Wonderful review, easy and simple to grasp!! Which diopters are you using? Been looking around but can’t seem to find trusted ones. Yours seems to be working very well with no artifscts, color shifts or softening.

Nice video, keep it up. Fun fact: While this adapter (or any for that matter) can be used on many different lenses; the distance from the outermost lens element of the taking lens will effect its performance… sharpness, chromatic aberration etc… I don’t believe there is an issue with your adapter, just the spacing is incorrect.

Thank you - I have a new adaptor still in the box and was considering whether to sell it or keep it to put it on my Sirui 50mm 1.6x. I hadn't really considered fitting it to the 4 Samyang lenses I use on a Canon C200. I think I'll keep it 😀

Perhaps the ability to get accurate infinity focus on the taking lenses is impacting sharpness? Some lenses focus just past infinity to allow for tolerences in different temperatures etc?

What causes the softness issue is actually simple: physics. The Sirui anamorphic adapter uses a variable diopter for focusing, and no manufacturer can make a diopter equially suitable for all lenses. Diopters are always optimized for a certain focal length, so for versatility, DIY anamorphic setups require several diopter-based single-focus solutions. In this case, I suspect the diopter to be optimized for 50mm taking lenses (would love to hear the accurate info from the manufacturer).

I noticed the stack of filters you had between the lens and adapter, does that not act like a macro tube , therefore effecting the focal range and dof? Did you test with and without and get the same results?

I’ll probably buy one or two of their lenses for Fuji X. The adapter seems to suck. A few days ago I cheated a little and put the Viltrox 13mm on the Fuji and cropped the image. Because of the f1.4 it does look like a 35mm f2 anamorphic, but without the anamorphic artefacts of course. If I could just get a filter that would give me some of the artefacts (oval bokeh and horizontal flares), without destroying the image sharpness, it would look amazing.

Adapter normally doesn't work well with zoom lens, lens with large front element and telephoto lens. My copy works well even with a vintage lens Helios 44m with no flares at all and decent sharpness wide open. The adapter world is indeed more hassle to work with. I have used great joy 1.35x adapter which is a little bit sharper and more characteristics.

Please tell me how things are with the canon 24-70 2.8 lens, at a focal length of 24mm??? You have only touched 70mm. Very interesting other focal lengths on this lens with this adapter!

Is the adapter the correct distance from the lens with all of those step down rings?

Thank you for this review! I was about to buy this adapter to use it for photography project with VarioElmarit 24-70 but it definitely will not suit my needs… looks like i will better buy Sirui 135mm .

Interesting video.. i just became a fan.. I do own Samyang Cine mk2... and i am looking to buy this adapter... so.. With Samyang.. This Adapter will work perfectly??? according to "The Ending Of This Video" lol lol

They are made for primes. The longer the barrel of elements the worse the performance.

Dear MinutesBack, excellent video and discussion regarding the Sirui 1.25X adapter. I also picked one and had the same difficulties that you described in your video. After some experimentation with it, I think I have found the explanation the variability in sharpness that you have experimented. My understanding is that two issues play into consideration, one is surly the sharpens of the taking lens, but this does not explain the variability, the second issue is critical and is the precision of the taking lens to focus at infinity. You see, this adapter demand that the taking lens be precisely focused at infinity and say put at the position. Even a minor deviation of 1mm will cause the type of image degradation that you have experienced. I tried this lens using some isco red projector lens and racked the focus at infinity as precisely as I could and the results were very good. See the video kzfaq.info/get/bejne/pr9joJurtJabe6c.html

Sirui is green, atlas is green, all the lenses has their own color signature... if you dont want it send it to me :)

pretty annoying.