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G system as Pinhole camera

kcloong

Member
Hi,
Just a question out of curiosity. Is it possible to construct a pinhole camera out of a G1? If so, has anyone has any experience in doing so and could you share?
regards
kc
 
R

rickd

What a neat idea! I've never heard of it being done, but I'd imagine you could modify a G body cap by cutting (drilling?) a large hole in the center and attaching (gluing?) a piece of brass sheet stock with a pinhole to it. Should be relatively easy to do.

If you do try using your G as a pinhole camera, please do let us know how it works out.

--Rick
 

kcloong

Member
Well, maybe here's a good forum to start some discussion going.
There are some questions that I myself am not sure of the answers.
1. Exposure calculation. Is there a way to trick the camera to switch to external metering like when one mount the 16mm onto it?
2. Focusing and sharpness. What i know is that for a pinhole camera, it will be sharp throughout, but the question is does the location of the pinhole matters? (e.g., should I stick the brass sheet of the outer or inner portion of the cap?
3. Will the shutter plane be burnt through? Probably will not happen, but don't think i wanna find it out the hard way.

Anyway, thanks for the response. At least I have an indication that I am not going off tangent here.
 
R

rickd

Here's one resource I found. I'm certain there are others:

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I'm guessing that at f:350, concerns about focus become moot. The keys seem to be to use film that has a wide exposure latitude and to experiment, experiment, experiment.

--Rick
 

albert4321

Well-Known Member
Rick, good reference site. Thanks.

BTW, Why bother with the G2, you can get a Holga pin hole camera for $26 and use 120 films.

Albert.
 

coodeville

Well-Known Member
I myself don't see any point in using the G2 for pinhole. Unless of course you like eating up batteries that cost 6 bucks each. Once the lens is off, well............what's the point?
 

albert4321

Well-Known Member
"Once the lens is off, well............what's the point?"

The point could be, well.. dust inside the camera. :)
 

saspencr

Well-Known Member
wow, harsh. sometimes the point can be just to see if you can do it. aside from that, the body of the G2 also has a lot of control over the image such as continuous wind, etc. I say give it a try for fun!
 

kcloong

Member
everyone, thanks for all the comments.
I am sorry if it seem sacriligious to a fine camera to suggest building a pinhole camera out of it. Well, my reason is purely simple: to see if I can do it. Besides, it saves me the money to get a new lens for my christmas present this year ; )

Here's a status report of what I have done so far. In an attempt to understand the workings of a pinhole camera;
I constructed a simple light shield with a small pinhole. Stuck it onto a bellows unit with a SLR on the other end.
The SLR is so that I can see the image and the effects, bellows unit is to check out the effects of different focal lengths.

Haven't done it for the G body yet. Waiting for the body cap stock to arrive.

Anyway to make a long story short, I got what I am looking for: a challenge.
 
R

rickd

I think it's great that you're pursuing the idea! Please keep us posted on your progress. I'm especially interested on where you place the "lens" in relation to the film plane (distance from) and what hole diameter gives you best results (you'll pwobably want to try several).

I've coined a name you can feel free to use: the Hole-ogon.

Best regards,

--Rick
 
P

picturetaker

G2 for Pinhole !?
Its like Pulling a Caravan with a Dodge Viper or a Ferrari.
Would you really drill a hole in a 20Dollar Bodycap ?
The Exposermetering wont work anyway. There are several Cameras for Pinholephotography available usually very cheap.
Skip this Idea !
Voigtlander has got a Pinhole lense available and with a Voigtlander RF Body (its a Yashica) makes it a much usefuler equipment, also get a lightmeter.
 
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