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View Full Version : Accessory Close-up lenses: Technique and usage


Drew Bedo
10-Aug-2015, 06:42
I understand that nothing equals the images produced with quality macro lenses on a camera with sufficient extension in conjunction with adequate lighting etc. and so forth. I respect all these aspects of quality macro photography.

With that said: I have come across a set of large-ish plus diapers (72mm filter ring) and a split diaper. I have step-down rings to mount these to my lenses (72-67). The split lens is half clear (no glass) and half +. I am thinking about using this to do some near-far landscape photography, say, a big flower with some famous peak in the background.

My camera is a Wista made Zone-VI with 12" max extension. My lens selection is 90-150-210mm.

What do I need to know before going outside and fioeling with this rig in the hot sun
Dan Fromm
10-Aug-2015, 10:27
Glass diapers? Do they conform well to infants' bottoms?

Take 'em out and try 'em. Diopter lenses are most often used on lenses for 35 mm SLRs that won't reach the magnification wanted on their own mounts. In that application no exposure compensation is needed.

My experience with Nikon's own diopters on a 50/1.4 Nikkor was dismal. Horrible field curvature. So look at the entire image before taking an exposure. You know that already.

Good luck, have fun,

Dan
Jim Jones
10-Aug-2015, 10:28
I may still have a set of split diopter filters, but haven't used them in maybe 50 years. They should be fine for people who tolerate out-of-focus bands in their images. You could stay out of that Texas Sun and do your testing indoors. This has the advantage of repeatability if further testing is desired.
Drew Bedo
10-Aug-2015, 11:43
diopter
DIOPTER
DIOPTER
Dan Fromm
10-Aug-2015, 12:21
Drew, welcome to the club. Those of us who haven't made that kind of mistake will, sooner or later.
Maris Rusis
10-Aug-2015, 16:10
diopter
DIOPTER
DIOPTER

And then there's the other half of the world where DIOPTRE rules instead of DIOPTER. Thank goodness they mean the same thing!
Dan Fromm
10-Aug-2015, 18:47
And then there's the other half of the world where DIOPTRE rules instead of DIOPTER. Thank goodness they mean the same thing!

Diopter, dioptre. Diaper, nappy. English is a very strange language.
sun of sand
10-Aug-2015, 21:22
Lolz
Oren Grad
11-Aug-2015, 07:33
Substantive responses to Drew's question may be posted in the following new thread:

http://www.largeformatphotography.info/forum/showthread.php?124492-Accessory-macro-lenses-Useing-a-split-lens