I picked up a few meniscus lenses from Surplus Shed and stuck them on the front of my Speed Graphic using a contraption made from plywood, wood glue, and black paint. These are from the 250mm. Both are around f/4.
scanned neg
scanned neg
I picked up a few meniscus lenses from Surplus Shed and stuck them on the front of my Speed Graphic using a contraption made from plywood, wood glue, and black paint. These are from the 250mm. Both are around f/4.
scanned neg
scanned neg
Lovely work, and a lovely effect from the lens, Adam.
"I love my Verito lens, but I always have to sharpen everything in Photoshop..."
Thanks Mark!
excellent sharing and info...
do you have the part numbers handy?
I love SS, but their catalog is daunting to browse through.... fatigue sets in about 20 pages deep.
-Darryl
Darryl ,
Here's the info from my invoice:
SKU: L7135 Lens: PMN, Dia: 46.8, Focal: 250, Coated, $4
It took a few attempts to come up with a design that works well, and I was looking for a lens that gave me a nice flat/even image at infinity. Some other lenses gave me really funky results - and not in a good way. This one is nice.
I attached a couple pictures of the setup too, I made two boards with 2 holes each for apertures, placed about 3/4 inch in front of the lens. They work well with no vignetting, and they are close enough to f/6, f/8, f/16, f/22 to accurately meter.
Adam
Adam,
I like the "aperture box". It's not self-contained like the wheel design of old, but still just as functional, and probably easier to make... also easier to add other boards for "stopping down" further.
Good work!
Chris
"Aperture box", I like it!
I couldn't think of a good name for this thing, but that's perfect. Thanks Chris.
Many do not realize is that Photography's very first designed lens was/is the Wollaston Meniscus, as invented by William Wollaston (England, 1812).
Upon first viewing the ground glass one is greeted with the challenge of focusing such a primitive objective.
There's a "learning curve" involved with a Wollaston Meniscus.
Here are two examples of a 285mm lens at f:5.6 and f:11, shot on 5x7 FP4.
The configuration of the 285mm lens is the same as the 190mm shown on a Speed Graphic lensboard.
More about these lenses here:
www.Re-inventedPhotoEquip.com
Reinhold
Sinar f2 - simple meniscus lens in Polaroid shutter - 3sec. bulb "guess"
Lens build from Jim Galli.
Crop from scanned 4x5 instant FUJI FP-100C45
"Kitty Dreams"
http://www.cornbread.com/~buggz/KittyDreams-03.jpg
Nice to see a color shot with one of those. Notice how there's no color fringing. Nice glow but the achromatic effect of the 2 cemented glasses cancels the color fringe you get with a 'simple' meniscus like a 2F99.Originally Posted by buggz
Sinar f2 - simple meniscus lens in Polaroid shutter - 3sec. bulb "guess"
Lens build from Jim Galli.
Crop from scanned 4x5 instant FUJI FP-100C45
"Kitty Dreams"
Put [IMG][/IMG] tags around your url for it to come up here.
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