Hi,
I am back from town....no 75mm lenses, well not the bigger aperture ones. There was a 75mm/8 SA I think for HKD 4000, higher than eBay, so not so good....
There was a Nikkor SW 90mm/4.5 for HKD 8000, also higher than eBay I think....mind you, everything german is high priced here in HK and China and Japan.....not that all german is good, but that's their reputation, lah!
You are using a Horseman LE? Good luck man! 5KG camera, I gave up on it long ago, I am using a Cambo now, 2.5 KG, and same movements but not geared who cares.
yes, you can use a 75mm lens on the Horseman without the recessed lensboards (which are very expensive, and hard to get used on eBay), but you may need a bag bellows (can make your own) to get movements, in fact I still have one for sale if interested (not selfmade one)
...another reason to go for Cambo (easy to get parts, and cheap too, at least now)...easy to get recessed boards...
Yes, you may need a centerfilter for lenses below 90mm generally, unless you don't mind the slight darker corners. BTW, Hoya also sells center filters for lower prices than the original Rodenstock/Schneider.....as long as you don't use it for the 45/47/55/58mm lenses, these are good enough, all Hoya offer 1 stop correction only. I got them from Middle road, the Hoya distributor, forgot the name now (age lah!)....but decided to sell them off for the original ones as I was using a 47mm.
Depending on what you shoot, 47mm is useful, especially if you use a 6x9 or 6x12 back, on 4x5 it is extremely wide (like a 15mm).. perspective is very pronounced then...
I remember Prime has a used 75mm Grandagon in a press shutter forgot the price too....seems I forgot alot of things he!he!
Hong Kong Sien