Fuji Protector Filters

[vince]

Question for anyone who owns a Fuji protector filter for their lens. I have the PRF-52 for my 35mm f1.4 lens and the PRF-62 for my 23mm f1.4. I noticed the light reflecting off the front of the filter glass is different between the two filters even though they should have the same coating. The light reflecting off the front of the PRF-52 is PURPLE while the light reflecting off the PRF-62 is BLUE. The attached photo illustrates this using an LED strip as the light source. (The filters are mounted to the lenses in the photo, so ignore the extra reflections from the lens elements.)

 

Can owners of Fuji filters tell me if they see the same colors reflected off their filters?

 

Both filters use Fuji's Super Electron Beam Coating (EBC), so I was expecting the same color in light reflection.

 

I wonder if it's possible one filter is fake. However, all the packaging looks legitimate, and I have yet to notice any striking differences in optical performance.

 

Thanks for any input from you folks.

 

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For those interested, here's a link to Fuji's product page for the filters: http://www.fujifilm.com/products/digital_cameras/accessories/lens/

[Vladimir]

Hi Vince,

 

Quite interesting observation, I do not have X100 anymore but looked at my other lenses (all with fuji protectors)

 

On my 62mm diameter filters (23 f1.4, 56mm f1.2) the reflection is more blue'ish

The same on 67mm (16mm f1.4)

On the 72mm diameter (10-24mm f4 and 50-140mm f2.8) is more green'ish. Please have a look at the photo attached.

And slighly more greenish on diameter of 77mm (16-55mm f2.8)

 

 

It looks like the reflection depends on the filter diameter. Has any one got other lens/filter to try or have different results may be?

 

Regards,

Vladimir

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Edited March 20, 2016 by Vladimir

[vince]

Vladimir, thanks for checking your filters and posting the photo.

 
I'm now adding the filter for the Fujinon 35mm f2 lens (PRF-43) which reflects blueish, very similar to the 62mm filter (PRF-62). See attached photo.

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Edited April 5, 2016 by vince

[vince]

I obtained a second copy of the 52mm filter used for the Fujinon 35mm f1.4. The reflected light is not purple like the first copy, but rather yellow. See attached photo. 

 

Strange. I wonder why the color of reflected light differs when all these Fuji filters should have the same Super EBC coating.

 

 

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