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UV filter for 32mm and 23mm Rodentock

Dadbod

New member
Does anyone use UV filters for these lenses? I want to use them in the rain/fog/wet etc. and hesitate because I don't want to get water droplets on them.

I have the center filter for the 23 but it's no longer relevant with the 150.

Thank you for any input.
 
Does anyone use UV filters for these lenses? I want to use them in the rain/fog/wet etc. and hesitate because I don't want to get water droplets on them.

I have the center filter for the 23 but it's no longer relevant with the 150.

Thank you for any input.
I use the B+W UV/IR cut filter (filter 486) on my 32. I leave it on all the time unless I remember to take it off when using the center filter (I haven't noticed any degradation in quality when I've left it on).

Jacob
 

Greg Haag

Well-known member
I do not use a UV on my 32mm. I have a circular polarizing filter, that I leave on for protection and then take off when its not needed.
 
Just curious- does this filter add any sharpness, or is it just for protection only?
I have often wondered if IR/UV cause any subtle image degradation.
According to Brad Kaye at CI, the filter helps with image sharpness when using PhaseOne Achromatic cameras (which I use a lot the time). I have not seen any image degradation with non-Achromatic digital backs, which is why I keep the filters on my lenses full time regardless of what digital back I'm using.

Here's a link to a loosely related article on the CI website which briefly discusses the need for the 486 filter when using the achromatic digital back (which I understand is different than what would be seen with a non-achromatic digital back):

https://captureintegration.com/achromatic-focus-precision-on-alpa-technical-cameras/

Hope this helps,
Jacob
 

Dadbod

New member
According to Brad Kaye at CI, the filter helps with image sharpness when using PhaseOne Achromatic cameras (which I use a lot the time). I have not seen any image degradation with non-Achromatic digital backs, which is why I keep the filters on my lenses full time regardless of what digital back I'm using.

Here's a link to a loosely related article on the CI website which briefly discusses the need for the 486 filter when using the achromatic digital back (which I understand is different than what would be seen with a non-achromatic digital back):

https://captureintegration.com/achromatic-focus-precision-on-alpa-technical-cameras/

Hope this helps,
Jacob
Thank you so much. This is very helpful, I truly appreciate the time.
 
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