Rear-mounted filters for 14-24/2.8 Z

[BasilG]

Has anyone made first-hand experience with read-mounted filters for the 14-24 S? It appears to me that there are (at least) three options - gelatin filters (e.g. Irix Edge), rear-mounted glass filters (Haida) and clip-on filters for the camera (Kase).

If you have tried these, could you comment on whether i) the Irix ones are good quality, ii) the Haida system with the additional (rear-mounted) adapter poses any issues, and iii) what you think of the Kase system (does it pose any risk to the camera in terms of wearing out any of the parts it clips into)? That would be great!

Thanks a lot!

 

[BasilG]

I guess that the absence of replies is a good indicator for how popular these are (?).

 

[Lance B]

I guess that the absence of replies is a good indicator for how popular these are (?).

I was under the impression that rear filters produced more image degredation, but I have never used them so cannot comment.

Here is a Youtube from Henry Hudson using a variety of filters from NiSi, Lee and Kase -the latter is a rear drop in filter. He has chapters/time line of which filters he is using, sharpness comparisons and conclusions at the end. At 9:17 he tries the Kase rear filters, at 19:50 he analyses sharpness and at 21:12 the conclusions. The rear filters did fare the worst, though.

 

[BasilG]

I guess that the absence of replies is a good indicator for how popular these are (?).

I was under the impression that rear filters produced more image degredation, but I have never used them so cannot comment.

Here is a Youtube from Henry Hudson using a variety of filters from NiSi, Lee and Kase -the latter is a rear drop in filter. He has chapters/time line of which filters he is using, sharpness comparisons and conclusions at the end. At 9:17 he tries the Kase rear filters, at 19:50 he analyses sharpness and at 21:12 the conclusions. The rear filters did fare the worst, though.

Thank you Lance! Appreciated. I'll check out the video.

 

[BasilG]

I went ahead and tried these. Not too bad, but not perfect. I certainly got a bunch of good images with them, no issues with flare, not too difficult to mount. Overall they're worth the money I'd say, but if you want the absolute best, it may be better to look into the (more expensive) front-mounted systems.

One issue is that there definitely is field curvature with the filters inserted. On a somewhat distant subject (say 100 feet) at f/2.8, the edges go out of focus with the filter where they do not without the filter. This is usually easily resolved by stopping down, which will hide the issue. However, you have to be careful if you focus such as to keep a close foreground object in focus. Then, further-away objects at the edge may be slightly out of focus even if the DoF seems to cover both infinity and your foreground in the centre.