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Archive 2008 · Pentax 40mm/2.8 pancacke on 5D?

Silentlight
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p.1 #1 · Pentax 40mm/2.8 pancacke on 5D?

I am looking at the older manual focus model for a pocket-size ponorama lens. Will it fit the 5D without hitting the mirror? And how is the IQ/flare/color?

The lens looks awfully small. Will it vignette on the 5D?

Thanks...

Jul 04, 2008 at 02:33 AM

HansenTsang
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p.1 #2 · Pentax 40mm/2.8 pancacke on 5D?

The Pentax has a aperture thingie that sticks out really far. I had to grind it off so it will work with the 5D.

Jul 04, 2008 at 03:00 AM

jcolwell
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p.1 #3 · Pentax 40mm/2.8 pancacke on 5D?

The Contax Carl Zeiss Tessar 45mm f/2.8 is a good alternative pancake for the 5D. The Tessar is 3mm longer, has 5mm less diameter and is the same weight. The Tessar is probably less expensive, going for $160 to $225 on eBay. I haven't used the Pentax 40/2.8, but I doubt it's better than the Zeiss.

Jul 04, 2008 at 04:39 PM

CVickery
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p.1 #4 · Pentax 40mm/2.8 pancacke on 5D?

Another good alternative is the Olympus Zuiko 40mm f2.0. The Oly's seem to have few/no adapter issues and the lens is faster and still quite small. It probably will cost a bit more though.

http://zuserver2.star.ucl.ac.uk/~rwesson/esif/om-sif/lensgroup/40mmf2.htm

Jul 04, 2008 at 06:38 PM

geesbert
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p.1 #5 · Pentax 40mm/2.8 pancacke on 5D?

i am using the 40mm voigtländer on my 5d without any problems. nice combo, the smallest fullframe compact camera available.

Jul 04, 2008 at 08:02 PM

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p.1 #6 · Pentax 40mm/2.8 pancacke on 5D?

geesbert wrote:
i am using the 40mm voigtländer on my 5d without any problems. nice combo, the smallest fullframe compact camera available.

The Zeiss 45/2.8 Tessar, Oly 40/2, and Pentax pancakes are all smaller and lighter than the Voigtlander.

Jul 04, 2008 at 08:22 PM

Marcel VanEerd
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p.1 #7 · Pentax 40mm/2.8 pancacke on 5D?

Extra, extra! Read all about it!

http://galactinus.net/vilva/retro/eos350d_tessar45.html

Search his site - this person has loads of info & samples on his site

Jul 07, 2008 at 04:23 AM

mh2000
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p.1 #8 · Pentax 40mm/2.8 pancacke on 5D?

the tiny, sharp and super cheap Industar-50-2 is a fun little (really tiny!) pancake lens... There is no issue with any Canon body (though I really haven't used mine much on a digital, but I shoot the lens' sister (I-22) all the time on RF film...

Jul 07, 2008 at 05:47 AM

Silentlight
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p.1 #9 · Pentax 40mm/2.8 pancacke on 5D?

Thanks all. Seems like more research is in order.

Will I have mirror clearance issues with CZ 45 on 5D?

Industar 50 is dirt cheap on the auction site. I'll give it shot. Thanks.

And Marcel, thanks for the link. I think I have one of these (or something similar) laying around somewhere. Will give it a shot.

http://galactinus.net/vilva/retro/eos350d_r50.html

Jul 07, 2008 at 06:41 AM

Daniel Buck
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p.1 #10 · Pentax 40mm/2.8 pancacke on 5D?

I've been using the Zeiss 45mm tessar as a 'body cap' on my 1Ds2. It protrudes out just bit farther than the side grip of the camera :-) Image quality is actually not to bad! I don't think the tessar design is very good wide open (though it doesn't seem to be bad from the few times I've used it wide open) it's pretty good when stopped down a few clicks.

Edited on Jul 07, 2008 at 06:46 AM

Jul 07, 2008 at 06:46 AM

Andrew Gough
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p.1 #11 · Pentax 40mm/2.8 pancacke on 5D?

The Zeiss will hang the mirror on the 5D without modification - at least it does on my 5D. The Voigtlander is a beautiful lens and will work perfectly on the 5D.

Jul 08, 2008 at 03:34 AM

mh2000
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p.1 #12 · Pentax 40mm/2.8 pancacke on 5D?

if you get an Industar-50-2, you will have to grease it for smooth focusing, but it is dog simple... I think it is constructed out of 7 or 8 components in all.

Jul 08, 2008 at 05:45 AM

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p.1 #13 · Pentax 40mm/2.8 pancacke on 5D?

Voigtlander 40/2 SLII is awesome, beautiful, has great optics, and can be bought new. Problem is that it's not much smaller or lighter(actually heavier) than some 50mm's (nikon 50/1.8E).

Olympus is scarce, sometimes wildly overpriced, but otherwise totally awesome.

Pentax is a cheap (~$120) and small lens, requiring minimal mods to work on a 5D. Cut the aperture fin.

Contax is also cheap, and i think smaller, but needs mirror mod on most(if not all) 5D's to reach infinity.

Nikon made two 45mm f2.8's over the years- the early "GN" model which is ugly and stupid looking, and the later "AI-P" CPU'd lens which is quite expensive and generally you can only find it in silver (boo-hoo!).

I've come to the conclusion that Pancakes are very frustrating when used in the Alt world... Why use a tiny and (usually) slow manual lens that requires adapting, when you could use a $60 Canon 50mm f1.8 mkII that weighs nothing and does just fine?

I'm soon taking delivery of a Nikon 50mm F2 AI that i'm very excited about, as everything i've read on this lens says it's a real gem. It is also very small, and only cost me $41.

Jul 08, 2008 at 06:58 AM

Jman13
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p.1 #14 · Pentax 40mm/2.8 pancacke on 5D?

For the APS-C crowd, I'd almost consider the Oly 28 f/3.5 to be a pancake. It's just SO small, and it's a normal lens on APS-C. I can't wait till my OM adapter gets here....just holding the lens to the body has resulted in a very sharp test shot, so I'm excited to try it out, especially given the images in the 'it's a gem' thread.

Jul 08, 2008 at 12:44 PM

Silentlight
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p.1 #15 · Pentax 40mm/2.8 pancacke on 5D?

Thanks for all the advise. That Voigtlander 40/2 looks pretty sharp according to the photozone.de. It's worth a look, even though it's twice as expensive as Pentax. Do you guys with 5D have it in Nikon mount or PK?

Already have the Canon 50/1.8 II and love it. But, I like to stay in the 35 to 40mm range, and keep it pocket sized. Any other good options? I was thinking about Zuiko 35/2.8, but am concerned about flares on the older Zuiko lenses.

Thanks...

Jul 08, 2008 at 05:03 PM

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p.1 #16 · Pentax 40mm/2.8 pancacke on 5D?

jcolwell wrote:
The Contax Carl Zeiss Tessar 45mm f/2.8 is a good alternative pancake for the 5D.

WARNING - DON'T BUY, THIS ISN'T GOOD ADVICE! Typically the 45mm Tessar will foul your mirror if you use it with an adaptor that allows infinity focus.

I would recommend trying the Nikon version which is pretty much indistinguishable, optically, and less likely to foul your mirror. It also has a very clever inverse lens hood which retains it's pancake status.

The Oly 40 f2 is my chosen weapon though because of size, f2, focal length, sharpness, contrast bokeh, you name it. Here's a picture of Andrew with it ;-)

This image is copyrighted by the owner

This image is copyrighted by the owner

Here are a few more

This image is copyrighted by the owner

This image is copyrighted by the owner

This image is copyrighted by the owner

This image is copyrighted by the owner

This image is copyrighted by the owner

This image is copyrighted by the owner

And here's it is:

This image is copyrighted by the owner

This image is copyrighted by the owner

Edited on Jul 08, 2008 at 05:19 PM

Jul 08, 2008 at 05:07 PM

jcolwell
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p.1 #17 · Pentax 40mm/2.8 pancacke on 5D?

brainiac wrote:
jcolwell wrote:
The Contax Carl Zeiss Tessar 45mm f/2.8 is a good alternative pancake for the 5D.

WARNING - DON'T BUY, THIS ISN'T GOOD ADVICE! Typically the 45mm Tessar will foul your mirror if you use it with an adaptor that allows infinity focus.

I think you're over-reacting Richard. I've been using the Tessar on my 5D and other bodies for a few years, and it works just fine. Many other people use this combo as well. Sure, I snipped the corner off its aperture lever so it woulldn't stick on the mirror, but there's nothing "foul" about it.

Jul 08, 2008 at 09:00 PM

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p.1 #18 · Pentax 40mm/2.8 pancacke on 5D?

jcolwell wrote:
brainiac wrote:
jcolwell wrote:
The Contax Carl Zeiss Tessar 45mm f/2.8 is a good alternative pancake for the 5D.

WARNING - DON'T BUY, THIS ISN'T GOOD ADVICE! Typically the 45mm Tessar will foul your mirror if you use it with an adaptor that allows infinity focus.

I think you're over-reacting Richard. I've been using the Tessar on my 5D and other bodies for a few years, and it works just fine. Many other people use this combo as well. Sure, I snipped the corner off its aperture lever so it woulldn't stick on the mirror, but there's nothing "foul" about it.

I tried 2 copies on 2 5D's. Both fouled both. There have been many other reports of mirror fouling with the Tessar and 5D. I am glad you were lucky with yours, but when someone is about to drop a few hundred dollars on something which may well not work, a warning is in order. Many people read stuff here and then go straight to ebay and bid on something. That's why I was shouting. Most of the CY 28's I have tried worked fine on 5D's, but one didn't. It's always worth mentioning that a lens might not work, or even probably won't work before someone ends up very frustrated.

Edited on Jul 08, 2008 at 10:03 PM

Jul 08, 2008 at 10:01 PM

jcolwell
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p.1 #19 · Pentax 40mm/2.8 pancacke on 5D?

I wasn't lucky, I modified the lens so that it didn't hit the mirror. Same as with the Pentax K-mount lenses that I use. Some people shave the mirror, I shave the lenses.

Edited by jcolwell on Jul 09, 2008 at 04:26 AM GMT

Edited on Jul 09, 2008 at 12:26 AM

Jul 08, 2008 at 10:32 PM

Silentlight
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p.1 #20 · Pentax 40mm/2.8 pancacke on 5D?

brainiac wrote:

The Oly 40 f2 is my chosen weapon though because of size, f2, focal length, sharpness, contrast bokeh, you name it. Here's a picture of Andrew with it ;-)

This image is copyrighted by the owner

This image is copyrighted by the owner

Here are a few more

This image is copyrighted by the owner

This image is copyrighted by the owner

The lighting in your portraits look good. I am curious how you lighted them.

Thanks for the Zeiss warning. I am sure it's a fine lens, but since there is a chance of it failing on my 5D (even if there is only a small chance) I've opted to look for something else. Will skip the Pentax 40/2.8. Most probably will go with the suggested Voigtlander 40/2, from Camera Quest, new with 1 year warranty. Oly 40/2 is ridiculously expensive and hard to find.

I am also getting a cheap M42 Industar 50/3.5 (new condition) from Russia for the fun of photography. It was harder to find a reputable dealer than finding a good deal on the lens!

Edited on Jul 08, 2008 at 10:35 PM

Jul 08, 2008 at 10:34 PM

Silentlight
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p.1 #21 · Pentax 40mm/2.8 pancacke on 5D?

jcolwell wrote:
I wasn't lucky, I m\odified the lens so that it diodn't hit the mirror. Same as wkith the Pentax K-mount lenses that I use. Some people shave the mirror, I shave the lenses.

I think he's talking about the rear element of the lens, not the lever, hitting the mirror when focused to infinity. On a different post somebody was saying that they had to remove the rear filter of their Zenitar lens to clear the mirror on 5D while I have no problem with that on my 5D.

I wonder how many of these are adapter related.

Jul 08, 2008 at 10:42 PM

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p.1 #22 · Pentax 40mm/2.8 pancacke on 5D?

Personally, i think the best routes are teh Olympus if you can find/afford it, and then the Pentax or Nikon after that. The Voigtlander is great (FANTASTIC optics!), but it is much larger and heavier than the others. The Pentax is still very good, and can be had for VERY cheap if you shop around. The Nikon is also very good, and is available in silver, if that's your cup of tea.

I would advise against the Zeiss, as more often than not it will "foul" the 5D's mirror. Everything i've read/seen about this indicates it is the rear element, and not an aperture lever. True, you could try it and later sell the lens for most of what you paid, but why bother when there are other great solutions?

Jul 08, 2008 at 11:03 PM

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p.1 #23 · Pentax 40mm/2.8 pancacke on 5D?

I have the Olympus OM 40mm f2.0 and it does not have any issues with the mirror. The shots posted above are a true testament of what this lens is capable of. I doubt if there is anything better when it comes to 40-45mm pancakes.

Now if it was a 30mm pancake or a 21mm pancake with the same quality, I would have liked it even more.

Jul 08, 2008 at 11:36 PM

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p.1 #24 · Pentax 40mm/2.8 pancacke on 5D?

Silentlight wrote:
jcolwell wrote:
I wasn't lucky, I m\odified the lens so that it diodn't hit the mirror. Same as wkith the Pentax K-mount lenses that I use. Some people shave the mirror, I shave the lenses.

I think he's talking about the rear element of the lens, not the lever, hitting the mirror when focused to infinity. On a different post somebody was saying that they had to remove the rear filter of their Zenitar lens to clear the mirror on 5D while I have no problem with that on my 5D.

I wonder how many of these are adapter related.

No, the problem with the Contax Carl Zeiss Tessar 45/2.8 and 5D mirror is the aperture control lever and lever shield that contact the mirror. It doesn't happen with all Contax Zeiss lenses, but it does with others. For example, my Distagon 28/2.8 doesn't hit the mirror, nor does my Planar 85/1.4, but the Tessar 45/2.8 and Distagon 35/2.8 both contact the mirror, so I clipped their levers - no worries now. Some ultra wide lenses do have a rear element clearance problem, but not the Contax wides and normals.

Edited on Jul 09, 2008 at 12:31 AM

Jul 09, 2008 at 12:30 AM

Andrew Gough
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p.1 #25 · Pentax 40mm/2.8 pancacke on 5D?

brainiac wrote:
jcolwell wrote:
The Contax Carl Zeiss Tessar 45mm f/2.8 is a good alternative pancake for the 5D.

WARNING - DON'T BUY, THIS ISN'T GOOD ADVICE! Typically the 45mm Tessar will foul your mirror if you use it with an adaptor that allows infinity focus.

I would recommend trying the Nikon version which is pretty much indistinguishable, optically, and less likely to foul your mirror. It also has a very clever inverse lens hood which retains it's pancake status.

The Oly 40 f2 is my chosen weapon though because of size, f2, focal length, sharpness, contrast bokeh, you name it. Here's a picture of Andrew with it ;-)

Richard,

Thats just too big! Wrinkles and all...

Edited on Jul 09, 2008 at 01:22 AM

Jul 09, 2008 at 01:22 AM


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