Recently bought a Holga HPL-C Pinhole Lens for Canon DSLR/SLRs. I'm sure they do a HPL-N too if you have a Nikon. Can easily find them on ebay for about 15USD before shipping. A pretty recent product far as I know, direct from the Holga factory themselves. Made in China.
(Bottom right clockwise >box & instructions lens>front cap>rear cap)
The lens body is cleanly molded in black plastic. No rough edges or anything. Lovely clean white lettering. Looks very smart. The hole itself is 0.25mm, again, using black plastic and mounts like any other lens on your DSLR body. The lure of infinite depth of field and all that... that's why I bought it, and it wasn't very costly. Never dabled in Pinhole photography before and not that knowledgeable on normal non-pinhole photography either to be honest, but I'm learning.
By its nature of being teeny weeny aperture, you need long exposures to get a picture. An evening, indoor shot exposed for 19 sec produces image that reveal horrendous crap on my sensor I never knew I had (unless I'm mistaken). Like giant freaking alien ameobas floating around all over the place! OK so I have a tiny APS sensor, 400D that has never been cleaned in its 4 years of life and that probably does not help... but to the naked eye, the sensor looks pristine. Of course this is just the "naked eye" but like I say... What do I know about photography? Very little. So anyone with experience tell me this is normal to have pinhole photography show up tones of crap on your sensor you normally would never see taking pics through a real glass lens? I'll post up images shortly. It's fair to say this lens is an inexpensive accessory, but pretty bummed it made what I thought was my otherwise sound DSLR look filthy! Maybe the ameoba-fest is a look you are after? Not me though... I'm taking my camera to get it cleaned properly by Canon themselves and will see if it makes any difference. Check back with me later for updates.
(Bottom right clockwise >box & instructions lens>front cap>rear cap)The lens body is cleanly molded in black plastic. No rough edges or anything. Lovely clean white lettering. Looks very smart. The hole itself is 0.25mm, again, using black plastic and mounts like any other lens on your DSLR body. The lure of infinite depth of field and all that... that's why I bought it, and it wasn't very costly. Never dabled in Pinhole photography before and not that knowledgeable on normal non-pinhole photography either to be honest, but I'm learning.
By its nature of being teeny weeny aperture, you need long exposures to get a picture. An evening, indoor shot exposed for 19 sec produces image that reveal horrendous crap on my sensor I never knew I had (unless I'm mistaken). Like giant freaking alien ameobas floating around all over the place! OK so I have a tiny APS sensor, 400D that has never been cleaned in its 4 years of life and that probably does not help... but to the naked eye, the sensor looks pristine. Of course this is just the "naked eye" but like I say... What do I know about photography? Very little. So anyone with experience tell me this is normal to have pinhole photography show up tones of crap on your sensor you normally would never see taking pics through a real glass lens? I'll post up images shortly. It's fair to say this lens is an inexpensive accessory, but pretty bummed it made what I thought was my otherwise sound DSLR look filthy! Maybe the ameoba-fest is a look you are after? Not me though... I'm taking my camera to get it cleaned properly by Canon themselves and will see if it makes any difference. Check back with me later for updates.
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If i understand correctly, the smaller the opening of the aperture (in this case, the pinhole), the infinite Depth of Field (DoF) also means dirt on your sensor will appear. try it out on a regular lens as well. at f2.8, 3.5, your images will be without 'dirt', but your DoF is smaller, but as you stop down the lens to f22 or even f32 (if your lens allows) you'll probably see the same dirt as with the pinhole. try shooting a plain white sheet to confirm that it is dirt.
ReplyDeletebtw, congrats on the lens :-)
ReplyDeleteIts just crap visible using the pinhole. This was my 1st image. A 13s exposure...
ReplyDeleteGood to see you're getting ready to take awesome pictures of the Sun when it goes all crazy on December 21th in 2012!
ReplyDelete