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Centre Filter: This may be a stupid question but...
Old 01-26-2006   #1
jbrough
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Centre Filter: This may be a stupid question but...

I've just purchased an Xpan with a 45mm lens and centre filter, and am unsure, since the metering is TTL, whether I have to manually compensate for the 1 stop loss from the filter, or whether the camera will do this for me. Can anyone help?
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Old 01-26-2006   #2
kbg32
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Metering is TTL: Through The Lens.......camera will do this for you. Take some test shots and check the exposure. Anyway, the center spot filter is not needed with the 45.
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Old 01-26-2006   #3
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And, BTW, there's no such thing as a "stupid question".

It's how we learn!
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Old 01-27-2006   #4
Ben1
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Quote:
Anyway, the center spot filter is not needed with the 45.
The centre filter IS required on the 45, at f8 and lower. I.e, f8, f5.6 & f4.
I know some may disagree, but i can only share from my experience and say that i have shot alot of later afternoon/ low light work WITHOUT the filter at f8 and lower and have suffered some very bad darkening at the edges. Working with the centre filter almost eliminates this. (For the record, this is using SLIDE film, i dont think the filter is required at all using negative film)

There are people who use the centre filter on the 45mm at all apertures, even though the booklet for the filter states "Do not stop down excessively while using the filter". I have tried this, and have seen no negative effects whatsoever, even stopping right down to f22.

The Xpan 90mm lense however, DOES NOT require the centre filter.


And in answer to the original post, the cameras meter will compensate for the filter . .Although make sure if your using a hand held to add +2 exp comp.
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Old 01-27-2006   #5
mwolff
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My experience, shooting color negative film, is that the center filter is needed to avoid darkening at the edges.
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Old 01-27-2006   #6
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Yeah, what Ben said.

I've only shot B+W film in my xpan and have never used the center filter with the 45mm lens. I normally shoot f8 or smaller but on the occassion of using f4 or f5.6, I've never found the overexposure on the edges to be objectionable. Actually, it saves me sometime in the darkroom.
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Old 01-27-2006   #7
jbrough
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Thanks folks - that's all very useful info.
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