longest lens for Tachiharagreenspun.com : LUSENET : Large format photography : One Thread |
Just picked up a tachihara and was wondering whether i can focus to infinity with a 235mm lens, without using the bellows extension. What would be the lens size limit, without bellows, for this camera? I'm sure there is a formula for this but seeing as i'm not very adroit at calculations...
-- greg bergman (gbergma1@maine.rr.com), February 13, 2000
I think the bellows on a Tachihara is a bit over 12 inches. This means that you can focus a 300mm (a 12-inch lens) to infinity.
-- William Marderness (wmarderness@hotmail.com), February 13, 2000.
12" of bellows for a 300mm lens is not practical for 2 reasons: 1. You can't focus any closer than infinity. 2. If you need movement to change plane of focus, there will be noextra bellows with which to do it. You might consider a telephoto 300mm. These typically only require around 200mm of bellows. There are a couple of other considerations, one being coverage, the other being exit pupil factor. Niether should be a big problem for general landscape work.
-- Robert A. Zeichner (razeichner@ameritech.net), February 14, 2000.
The longest lens you can use is probably the Fuji 400T. Recent pricing on this lens is to your advantage.
-- Pat Raymore (patrick.f.raymore@kp.org), February 15, 2000.
Yes a 300mm is impractical. Anything longer than 210mm will have movement and close focusing limitations.
-- William Marderness (wmarderness@hotmail.com), February 15, 2000.
The Tachihara has a 13" bellows so a 235 mm lens will work fine. I was told by someone who used a 300 mm lens on his that he could focus from infinity to about 9 feet, which if correct would make the 300 mm lens very feasible. I used the Fuji 400T on my Tachihara and it worked just fine.
-- Brian Ellis (bellis@tampabay.rr.com), February 15, 2000.
I use a Fuji A 240mm f/9 as my longest lens on the Tachihara. It will focus down to 4'4" (measured from the film plane.) This is an image scale of almost 1/3 life size on the film.
-- Gary Frost (gfrost@home.com), February 18, 2000.