That poses even less of a problem than using the entire image circle.
The reason for a center filter is to compensate for light fall-off in the outer area of the image circle.
If you're not using that area in the first place, you don't need to compensate for it.
- Leigh
If you believe you can, or you believe you can't... you're right.
Edward, to expand a little on Leigh's reply to this question, you might want to read my lens diary. A link to it is in post #7 in this thread.
I shoot lenses from 35 mm (covers the format) to 480 mm (also covers) on 2x3. My second- or third-most used lens is a 47 SA. I have a center filter for the 35, don't feel the need for one on the 47 with E100G. There's a hint.
150mm Symmars and Sironars are both cheap and plentiful.
Rodenstock Apo-Sironar N - very nice & predictable, and allows a pretty good amount of movement. I understand it is a Planar-type design rather than the Tessar-type which Schneider use, which suits me for architectural work as it gives a flat & consistent image field. The S version may even be better, but will naturally cost more.
ic, why didn't you keep mum? The OP is fixated on highly superior (by someone's definition) German lenses. We should let him drive their prices up and not tell him about the good stuff.
I can't add much to what others have written here other than to say that, IMHO, any FL from 90-110mm is close enough to "normal" for 6x9cm (56x84mm). I don't know your budget nor your shooting style nor the subject matter so I don't feel I can make any specific recommendations.
May we have a little more information as to your expectations of this lens?
ETA: I concur with ic-racer that the Topcor lenses are top notch. Many years ago I owned the 65mm, 105mm, and 180mm. For 6x9cm, I can't imagine any lens at any price making any of them look bad in comparison unless one needs lots of image circle. If one doesn't need larger image circles then (the last time I checked prices) they are indeed a steal.
Last edited by Old-N-Feeble; 23-Feb-2012 at 10:14. Reason: misspell
I have a Nikkor W 100mm and love it. Also have a 100mm 2.8 Planar but wouldn't recommend it for anything requiring movements. If no movements the Planar makes beautiful images. Nikon also made a 105mm W. The image circle was the same for the 100 & 105. No idea why they made two that close.
I like the Nikkor but wouldn't hesitate to buy a Schneider or Rodenstock.
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