[Lens] DIY tilt/shift - take 2 - Digital Imaging Technology

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pog
Premium
join:2004-06-03
Kihei, HI

Reviews:

·Hawaiian Telcom

[Lens] DIY tilt/shift - take 2

I've made some progress since »DIY tilt/shift

Materials used:
1) vinyl fabric (fabric store, cheap by the yard)
2) JB Weld glue (hardware store)
3) M42 adapter (already had a bunch)
4) Bronica mount (from broken camera)
5) some washers and nuts (hardware store)
6) some steel wire (hardware store)

I glued some nuts and washers to the M42 mount to form a groove around the circumference. I did something similar to the Bronica mount. I cut the fabric in a circle, put the M42 mount in the middle, then pulled the fabric up around it. Steel wire then cinched it in place. Now I can cut the middle and fold it back. I attached the Bronica mount similarly with steel wire. Doing it this way means there's no seam to worry about.

PENTAX *ist DS
28mm 1/100th F6.3 ISO400
-1-

This is a medium format lens... dirt cheap and, as you'll see, extremely sharp.

PENTAX *ist DS
28mm 1/100th F6.3 ISO400
-2-

Note the steel lever/button... this stops down the lens. Awesome! I can focus wide open, stop down, shoot.

PENTAX *ist DS
28mm 1/100th F6.3 ISO400
-3-

A K-mount to M42 adapter... cheap on ebay. I was going to use part of an old lens but this was flatter and easier to use.

PENTAX *ist DS
28mm 1/100th F6.3 ISO400
-4-

The Bronica mount stripped from a broken camera. This will make it easy for me to attach other Bronica lenses if I find any.

One problem I've found is that everything is too flexible and the fabric sometimes bunches inwards, blocking the light path... however, it's still a LOT of fun.

Now onto some sample shots!

Not all really illustrate tilt/shift, though...

PENTAX *ist DS
0mm 1/80th F0 ISO800
my keychain up close

PENTAX *ist DS
0mm 1/160th F0 ISO800
Sigma lens up close

PENTAX *ist DS
0mm 1/160th F0 ISO800
100% crop of above

PENTAX *ist DS
0mm 1/160th F0 ISO800
another shot of the keychain

PENTAX *ist DS
0mm 1/160th F0 ISO800
a tiny bug on my desk

PENTAX *ist DS
0mm 1/160th F0 ISO800
same bug

PENTAX *ist DS
0mm 1/1600th F0 ISO200
flowers outside

PENTAX *ist DS
0mm 1/125th F0 ISO200
over my back fence

PENTAX *ist DS
0mm 1/125th F0 ISO200
one silly kid LOL!

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to forum · permalink · 2007-07-06 05:27:14 ·

rogue_
I Have A Secret Window
Premium
join:2001-10-17
Lake Hiawatha, NJ

Can you post a profile picture of the completed and assembled setup?

By the way, that is right up my alley. I have a Prinzflex 28mm f2.8 that might work for this.
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Bozone (n.): The substance surrounding stupid people that stops bright ideas from penetrating.

to forum · permalink · 2007-07-06 09:38:16 ·

pog
Premium
join:2004-06-03
Kihei, HI

Reviews:

·Hawaiian Telcom

I'll post a complete pic when I get home.

Your 28mm likely won't do a satisfying job since it's built for a 35mm camera...

1) the image circle is not large enough. Medium format is good since there's a ton of coverage allowing lots of tilt and shift room.

2) Many (all?) MF systems also have about 2x the registration distance which gives room for stuff (mount adapters, tube material/fabric) while still allowing for infinity focus.

A large format lens might be even better but it's tough to find a cheap one at a focal length I'd like... a normal lens for large format is pretty long when used with 35mm systems. I'd prefer 40-50mm but that's wide for medium format and super-wide for large format... IOW, expensive. Spending more than $50 is expensive (to me) since Lensbabies aren't much more than that (even though they don't really shift much... mostly tilt).
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to forum · permalink · 2007-07-06 18:40:07 ·