Schneider SA 90mm XL - does it need a centre filter?

[lyonheart]

I'm thinking of splashing on a Schneider 90 Super Angulon XL. I want to shoot B&W and transparencies. Robert White suggests a IVa center filter.

To complicate matters I would like to use my Lee filters with this setup. I was thinking of getting a push on Lee holder. Without the centre filter a 100mm push on Lee adaptor is fine. Trouble is that centre filter is flared outwards to 115 mm (filter thread 112 mm) and that means you cannot use your 100 mm Lee push on filter holder and the centre filter at the same time. So I could get a 115 mm push on holder, but if I want to use without the centre filter it's no use. I don't really want to buy two Lee filter holders of different dimensions (I've already got a regular one.) So.... I think my questions are:

1. Do I need a centre filter? How bad is the light fall off on the 90?
2. Do I need the centre filter for both B&W and Velvia?
3. Has anybody used Lee filter holder with the 90 and a centre filter - is it practical or a PITA?
4. Any other ideas before my head explodes....

Colin

PS. I am using 4x5.

 

[Ole]

What film size are you using?

IMO you won't need a center filter for B&W, or for 4x5". With 5x7" slides a center filter is a very good idea. with 5x7" B&W it can be useful, but not indispensible.

 

[lyonheart]

What film size are you using?

Sorry, should have said - 4x5

 

[jd callow]

With the 90mm you don't need a centre filter for 4x5 regardless of film type.

 

[lyonheart]

Many thanks, I'll forget the lens centre filter. Much easier than trying to explain this to the wife....