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Old 27-09-2019, 09:08 AM
casstony
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Nikon clip in filters for FF

I'm wondering what full frame clip-in filters are available for my D750. I see an Optolong L-Pro and STC Multispectra.

Any recommendations?
Any issues using these filters with lenses?
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Old 27-09-2019, 09:44 AM
AnakChan (Sean)
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I have the STC MultiSpectra for my D810A. I do have to mirror lockup to install if, so effectively have to use liveview (which isn’t a problem cos I use that for focusing anyway).

The clip-in does vignette (which to me a little too dark that flats can’t fix). But I just crop to an equiv of or just a tad larger of APS-H size.

I’m out right now but I’ll see if I can attach a sample later.
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Old 27-09-2019, 11:47 AM
casstony
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Thanks for the info Sean. If you've got a sub or stack which shows the vignetting I'd be interested to see.
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Old 27-09-2019, 03:29 PM
AnakChan (Sean)
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Here's a sample I took (which I posted on CN). It is strange that the vignetting is on only 3 borders rather than all 4.

P.S. A little more info here too: https://www.cloudynights.com/topic/5...non/?p=7900327
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Old 27-09-2019, 05:23 PM
casstony
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That's fairly serious vignetting. I might stick with other options such as 2" filters where they'll fit in the image train or front of lens filters.
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Old 27-09-2019, 05:27 PM
AnakChan (Sean)
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I have to say I’ve only used the clip-in once myself. It’s not ideal if the full frame is in use. However if one were to use wide Nikon lenses where cropping is needed anyway due to coma from the lens, etc, then maybe the clip-in may still works fine - so it kinda depends on application.
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Old 29-09-2019, 11:25 PM
AnakChan (Sean)
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Tony,

Just saw this today. You may be interested as it’s clip-in filters for the D750 :-

https://youtu.be/7wd1hRM7I1o

It seems that maybe the Optolong clip-in’s may not vignette as much as the STC DuoNarrowband did for my D810A. However the video does discuss about other caveats with these clip-in filters (especially with wide angle lenses).
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Old 30-09-2019, 10:25 AM
casstony
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Thanks Sean, it does seem that the Optolong doesn't vignette as much.

For wide angle lenses at least you can drive out of town with minimal gear where you don't need a filter.
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Old 30-09-2019, 03:49 PM
Ukastronomer (Jeremy)
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Quote:
Originally Posted by casstony View Post
I'm wondering what full frame clip-in filters are available for my D750. I see an Optolong L-Pro and STC Multispectra.

Any recommendations?
Any issues using these filters with lenses?

Are they all that expensive
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Old 30-09-2019, 04:23 PM
casstony
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They're not cheap, about US$230.
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Old 01-10-2019, 08:32 AM
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Search, I posted a review on stc long ago.
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Old 01-10-2019, 11:17 AM
casstony
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Thanks Steve, easy to find in the 'threads started by Sil' list

The apparent difference in vignetting between STC and Optolong is a factor steering me towards Optolong. They will probably release an L-enhance version at some stage.

The addition of the clip-in glass would help to compensate for filter removal from the modified camera too.
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