Search:

Type: Posts; User: Gordon Vcikrey; Keyword(s):

Search: Search took 0.00 seconds; generated 18 minute(s) ago.

  1. Replies
    2
    Views
    2,680

    Center filter needed for 90mm5.6XL ?

    I shoot 4x5 landscapes without using a cf on a 90/4.5. I don't encounter enough fall off problems to warrant a cf for that lens, even when using RVP. But there _is_ some visible marginal fall off,...
  2. Replies
    2
    Views
    3,927

    How to calculate depth of field?

    where:

    h=hyperfocal U=object distance

    Near limit (Dn) = hxU/h+U Far limit (Df) = hxU/h-U DOF = Df-Dn

    --Stroebel, "View Camera Technique" pp. 137-138.

    Some URLs related to DOF:
  3. Replies
    4
    Views
    3,219

    4x5 field. which is the best?

    The advice given by James Michelson apparently works so well for him that he thi nks no one should consider any other option. He opines that 6x7 should not be sh ot from the 4x5 format, and cites his...
  4. Mounting Schneider APO-symmar 5.6/135 to lens board

    First, you really must remove the screw. This is absolutely necessary. Then you may either 1) drill a hole part way through the lens board, allowing the len's f ront assembly to seat properly while...
  5. Replies
    5
    Views
    4,379

    Usefulness of rear rise movement

    When I first started into large format, I worried a lot about not getting enough of this or that kind of movement, and ended up buying a Wisner technical 4 x 5. It turned out that I very rarely used...
  6. Replies
    12
    Views
    7,516

    Which film for landscapes/portraits?

    I suspect that many folks who accept both parts of Peter Hughes' advice:

    "...Velvia (like all slide films) likes to be slightly UNDERexposed, and thus a rating of 64 or 80 seems far more...
  7. B&H sells gray market LF lenses... but don't overpay for them!

    Sorry you have had such bad experiences with B&H, Micah, however, I don't want f olks to get the impression that everyone gets treated shabbily by them.

    I have dealt with them on regular basis...
  8. How good is ArcaSwiss U.S. sales and tech support?

    I can't help you with respect to Arca-Swiss support because I haven't needed it during the two years I have owned the 4 x 5 F-line. But information and a good A -S catalog including all parts and...
Results 1 to 8 of 8