Canon 100mm/f3.5 ltm

[uhoh7]

By any chance is there anyone with a diagram showing the lens elements of the later all black version ?

I was disassembling it and the rear elements fell out ... tying to figure out if I put them back in the correct orientation.

DSC08099-1 by unoh7, on Flickr

 

[dxq.canada]

Thanks for the image ... looks like I did guess right.

Hmm, that 100mm appears to have 6 elements.

From the looks of the two rear elements, it looks more like the image on the Canon Museum of the ver I model:

http://www.canon.com/camera-museum/camera/lens/s/data/100-1000/diagram/s_sere_100_35v1_bd.gif

 

[kuuan]

looking for a faulty copy for parts

looking for a faulty copy for parts

it has been a while, but there was no way I could miss you, Robert ( rhl-oregon ) and KoNikon having clean copies that are assembled wrongly or have other mechanical issues.

this because I have two otherwise good copies of the black / chrome version which both have the same internal glass that is milky, etched to a degree that makes one useless, the other barley useable. I figuered that this is a typical problem for this lens and therefore never hoped to find someone who would have a copy for parts with that element clean, but you now gave me hope!

Am I lucky? Can one of you, or anyone reading this, sell me his faulty copy but with clean internal glasses ( resp. a clean lens element, the one behind the aperture ) rel. cheaply?

cheers, andreas

( oh, and btw. I have the same problem with the black 1.8/50. Again Ihave two copies with the same fault of the same inner element, just to a lesser degree, one is soft /glows, the other almost normal, but again I'd be very happy to find a clean glass element, best cheap from a lens for parts )

 

[raid]

I bought my 100/3-5 from KEH for $65. It needed some cleaning off internal haze. This is a very sharp lens.

 

[rjschell]

I concur that it's a great little lens, and it also works well on my NEX6.

 

[rhl-oregon]

Andreas, I just happened to read this. I'll pull out my all- black 100 tomorrow and have a look through it on the light table at my developer's shop. I can shoot a few macro pix of the results with the GR and send them to you privately.

it has been a while, but there was no way I could miss you, Robert ( rhl-oregon ) and KoNikon having clean copies that are assembled wrongly or have other mechanical issues.

this because I have two otherwise good copies of the black / chrome version which both have the same internal glass that is milky, etched to a degree that makes one useless, the other barley useable. I figuered that this is a typical problem for this lens and therefore never hoped to find someone who would have a copy for parts with that element clean, but you now gave me hope!

Am I lucky? Can one of you, or anyone reading this, sell me his faulty copy but with clean internal glasses ( resp. a clean lens element, the one behind the aperture ) rel. cheaply?

cheers, andreas

( oh, and btw. I have the same problem with the black 1.8/50. Again Ihave two copies with the same fault of the same inner element, just to a lesser degree, one is soft /glows, the other almost normal, but again I'd be very happy to find a clean glass element, best cheap from a lens for parts )

 

[kuuan]

this is so very kind of you Robert thank you so much!
P.M. answered and email sent, cheers, andreas

 

[kuuan]

thank you again Robert, even though it didn't turn out the way we wished, for your good intentions and readiness to help
got yet another, finally a good copy, very happy now, it's soo good 🙂

inside public transport, Kuala Lumpur: https://www.flickr.com/photos/kuuan/15916297716/in/photostream

https://www.flickr.com/photos/kuuan/15319770324/in/set-72157647160902334

https://www.flickr.com/photos/kuuan/15751830940/in/set-72157647160902334
Putrajaya, Malaysia
all on Ricoh GXR M

 

[joeswe]

I was in Japan recently and looking out for this lens, which I am interested in due to its compactness and light weight after reading many positive comments here and elsewhere. I looked at 5 or 6 copies and all of them were hazy, some of them to the degree that it made you think you were trying to look through frosted glass. Even the one with the least amount of haze was definitely looking milky when you held it up against the light, so in the end I refrained from buying one. The last dealer I visited told me that practically all later (black) 100s he had seen were hazy and the haze was of a not removable type caused by some properties of the used glass type.

I almost gave up on finding a good one, but now I think if this process might somehow be accelerated/caused by humidity (which is relatively high in Japan year round) it might be possible to find a good one outside of Japan. For those of you who own the lens, how is your experience? Is your copy clean or does it show haze?

 

[John E Earley]

I have two copies that I picked up along with something else. Unfortunately both are very hazy because of etching on the rear element.

 

[kuuan]

it took me buying 3 copies before I got a good one, all bought via auction in Japan. I realize that actually I was very lucky because almost all that I have seen selling in shops, many shops in both Osaka and Tokyo, had haze to an extent that makes the lens pretty much useless. The haze is as much as impossible to remove, I have tried all I could with my two prior copies.
I did come across copies that are fine, but they are rare and don't sell cheaply, still a bargain imo for less than 200 usd.
I have no idea if copies that have lived in less humid places are less effected

 

[Spavinaw]

I guess I'm lucky. I have both the chrome and black and the all black versions. Neither has significant haze.

 

[uhoh7]

it took me buying 3 copies before I got a good one, all bought via auction in Japan. I realize that actually I was very lucky because almost all that I have seen selling in shops, many shops in both Osaka and Tokyo, had haze to an extent that makes the lens pretty much useless. The haze is as much as impossible to remove, I have tried all I could with my two prior copies.
I did come across copies that are fine, but they are rare and don't sell cheaply, still a bargain imo for less than 200 usd.
I have no idea if copies that have lived in less humid places are less effected

A little haze never killed anyone. My copy, samples above, has some.

 

[kuuan]

A little haze never killed anyone. My copy, samples above, has some.

certainly a little haze doesn't kill anyone, but one of my lenses is absolutely useless, the glass is etched to an extent that one hardly can see through, another is quite a serious case too, useable but with obvious limitations, my 'good' copy also has a tiny bit of a haze, but limited to a small peripheral area, never mind 🙂

 

[rhl-oregon]

Andreas, glad to hear your quest ended happily! As I get ready for 10 days in Kaua'i, this thread makes me rethink which gear to take (in addition to my snorkeling cam, i.e.). The 100 3.5 is so petite and will draw distant vistas so intimately... [goes back to fussing over travel kit]

 

[kuuan]

Andreas, glad to hear your quest ended happily! As I get ready for 10 days in Kaua'i, this thread makes me rethink which gear to take (in addition to my snorkeling cam, i.e.). The 100 3.5 is so petite and will draw distant vistas so intimately... [goes back to fussing over travel kit]

thank you Robert, and wish you a great time below the sea, and also on land with the perfect gear 🙂

 

[Mackinaw]

Thought I'd resurrect this old thread. My small town has a large 100 acre enclosure where about 40 elk live. One old bull was enjoying life a few feet from the fence. Canon LTM 100/3.5 on a Leica M240.

Jim B.

 

[Sonnar Brian]

The reports of haze on the surface behind the aperture being common- very true.



Test after swapping the bad element out with one from an SLR version.

 

[neal3k]

It's nice to see this thread on the long, but small lens. I got mine free from a friend at the local camera museum.


New Toy for my Canon IV by Neal Wellons, on Flickr


Here are some of my favorite shots with the 100mm.



Through the Trees by Neal Wellons, on Flickr


262 by Neal Wellons, on Flickr


Serenar 100 with Pro Image by Neal Wellons, on Flickr

 

[Mackinaw]

.......The reports of haze on the surface behind the aperture being common- very true.......

No haze in mine, which is a black/chrome model, though I've heard haze is more common in all-black models.

Jim B.