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woodrim
Joined: 14 Jan 2010 Posts: 4060 Location: Charleston
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Posted: Wed Sep 15, 2010 5:36 pm Post subject: Komura 500mm f/7 |
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woodrim wrote:
Well, I had sworn that I was done buying lenses, then something happened. I was window shopping in ebay and saw a Komura 500mm f/7 lens. They seem to be quite rare, so I didn't expect to win the auction. I put in my bid and went to bed. Woke up in the morning to find I own it. Does that count as an accidental purchase? Here's a picture:
And here is a better assortment of pictures from a website:
http://www.cameraquest.com/ek500kom.htm
Think I'll need a tripod? Anyone know about this lens? It's an Exacta mount like on the web page, so I'll have to convert it along with my 135mm Komura - Exacta. _________________ Regards,
Woodrim |
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Nesster
Joined: 24 Apr 2008 Posts: 5883 Location: NJ, USA
Expire: 2014-02-20
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Posted: Wed Sep 15, 2010 5:45 pm Post subject: |
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Nesster wrote:
Congratulations, that looks wild
Obviously, this was entirely accidental, you just put out a bid for sport and it hit you. So no, I would not count this as being against your resolution _________________ -Jussi
Camera photos
Print Photographica
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ManualFocus-G
Joined: 29 Dec 2008 Posts: 6624 Location: United Kingdom
Expire: 2014-11-24
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Posted: Wed Sep 15, 2010 5:47 pm Post subject: |
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ManualFocus-G wrote:
Now THAT is a sexy lens _________________ Graham - Moderator
Shooter of choice: Fujifilm X-T20 with M42, PB and C/Y lenses
See my Flickr photos at http://www.flickr.com/photos/manualfocus-g |
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martinsmith99
Joined: 31 Aug 2008 Posts: 6943 Location: S Glos, UK
Expire: 2013-11-18
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Posted: Wed Sep 15, 2010 5:59 pm Post subject: |
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martinsmith99 wrote:
Does it come in two halves? _________________ Casual attendance these days |
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luisalegria
Joined: 07 Mar 2008 Posts: 6627 Location: San Francisco, USA
Expire: 2018-01-18
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Posted: Wed Sep 15, 2010 6:01 pm Post subject: |
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luisalegria wrote:
I was after that one !
Wasn't paying attention at the time though, so it slipped away - to you !
Its very easy to adapt the mount - get an M39-M42 ring and an M42 extension tube. The native mount on these is actually M39. They were originally designed to go on a Visoflex.
Komura supplied them with SLR mount tubes that screw on to the M39 and have the SLR mount at the other end. You should be able to just unscrew that Exakta mount.
So the easy fix is to use an M39-M42 ring to adapt the screw and use an M42 extension tube to add the necessary extra length (as the Visoflex register was quite long).
If you don't want to do your own adapting, the real Komura mounts can rarely be found separately, or you can look for the fairly common 200mm or 300mm in this series that use the same mounts. These often go cheaply. _________________ I like Pentax DSLR's, Exaktas, M42 bodies of all kinds, strange and cheap Japanese lenses, and am dabbling in medium format/Speed Graphic work. |
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fatdeeman
Joined: 13 Jun 2009 Posts: 780 Location: UK
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Posted: Wed Sep 15, 2010 8:39 pm Post subject: |
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fatdeeman wrote:
This looks interesting, I'll look forward to seeing more! _________________ - Dave
www.lensporn.net
www.flickr.com/photos/fatdeeman/
DSLR: Canon EOS 60D, Samsung GX-1S (Pentax *ist DS2)
Mirrorless: Panasonic DMC-G1, Sony NEX-5N
Compact: Canon PowerShot G3
Lenses:
Wide: Tokina RMC 28mm F/2.8, Tamron Adaptall 2 28mm F/2.5, Sun Optical 28mm F/2.5, Super paragon 28mm F/2.8, Sigma filtermatic 24mm F/2.8, Fujinon 35mm F/2.8, Sun Optical 35mm F/2.8
Standard: Industar 50-2, Helios 44-2, Helios 44M, Helios 44M-3, Pentax-M 50mm F/1.4, Pentax-M 50mm F/1.7, Pentax-M 50mm F/2, Ricoh 50mm F/1.7, Chinon 50mm F/1.7
Tele: Pentacon 135mm F/2.8, Pentacon 200mm F/3.5, Optomax 200mm f/3.5, Sun Optical 135mm F/3.5, Soligor 350mm F/5.6
Zoom: Tokina 28-70mm f/3.5-4.5 SZ-X270 SD, Sigma Zoom Pi 35-200mm F4-5.6, Sun Optical 28-80mm F/3.5-4.5, Sunagor 80-205mm F/3.8, Tokina RMC 80-200mm F/4, Vivitar 70-150mm F/3.8, Tamron 95-205mm F/6.3, Tamron Adaptall 28-200mm F/3.8-5.6 LD Aspherical, Tokina RMC 70-210mm F/3.5
Mirror: Falcon (Samyang) 800mm F/8, MTO-11CA 1000mm F/10, Tamron Adaptall 2 500mm F/8
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Attila
Joined: 24 Feb 2007 Posts: 57849 Location: Hungary
Expire: 2025-11-18
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Posted: Wed Sep 15, 2010 8:49 pm Post subject: |
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Attila wrote:
I expect nice colors and week sharpness , I look forward your reports! Congrats for this rare piece! _________________ -------------------------------
Items on sale on Ebay
Sony NEX-7 Carl Zeiss Planar 85mm f1.4, Minolta MD 35mm f1.8, Konica 135mm f2.5, Minolta MD 50mm f1.2, Minolta MD 250mm f5.6, Carl Zeiss Sonnar 180mm f2.8
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woodrim
Joined: 14 Jan 2010 Posts: 4060 Location: Charleston
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Posted: Wed Sep 15, 2010 8:53 pm Post subject: |
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woodrim wrote:
luisalegria wrote: |
I was after that one !
Wasn't paying attention at the time though, so it slipped away - to you !
Its very easy to adapt the mount - get an M39-M42 ring and an M42 extension tube. The native mount on these is actually M39. They were originally designed to go on a Visoflex.
Komura supplied them with SLR mount tubes that screw on to the M39 and have the SLR mount at the other end. You should be able to just unscrew that Exakta mount.
So the easy fix is to use an M39-M42 ring to adapt the screw and use an M42 extension tube to add the necessary extra length (as the Visoflex register was quite long).
If you don't want to do your own adapting, the real Komura mounts can rarely be found separately, or you can look for the fairly common 200mm or 300mm in this series that use the same mounts. These often go cheaply. |
My deepest appreciation for not paying attention. Believe it or not, that's as much as I've ever paid for a lens.
Thank you also for the conversion advice; wish I understood it. I need to convert to Sony A-mount at 44.5mm registration. Do you know if there is a picture series on the conversion? _________________ Regards,
Woodrim |
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woodrim
Joined: 14 Jan 2010 Posts: 4060 Location: Charleston
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Posted: Wed Sep 15, 2010 8:59 pm Post subject: |
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woodrim wrote:
Attila wrote: |
I expect nice colors and week sharpness , I look forward your reports! Congrats for this rare piece! |
Thank you, Attila. Weak sharpness is not my favorite thing. I'm hoping for a 12 to 16 blade diaphragm. I've been on a Komura kick lately and very much like the 135mm I picked up. It is very well made and solid feeling. The sharpness is more than satisfactory and the colors and bokeh superb - very close to my Series 1 135mm. _________________ Regards,
Woodrim |
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woodrim
Joined: 14 Jan 2010 Posts: 4060 Location: Charleston
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Posted: Wed Sep 15, 2010 9:03 pm Post subject: |
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woodrim wrote:
martinsmith99 wrote: |
Does it come in two halves? |
Yes, Martin. My picture shows the two halves in their carrying case and the website I posted shows the lens assembled. It's much longer than I'd like, but we'll see. I can't imagine taking it many places. _________________ Regards,
Woodrim |
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Attila
Joined: 24 Feb 2007 Posts: 57849 Location: Hungary
Expire: 2025-11-18
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Posted: Wed Sep 15, 2010 9:06 pm Post subject: |
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Attila wrote:
woodrim wrote: |
Attila wrote: |
I expect nice colors and week sharpness , I look forward your reports! Congrats for this rare piece! |
Thank you, Attila. Weak sharpness is not my favorite thing. I'm hoping for a 12 to 16 blade diaphragm. I've been on a Komura kick lately and very much like the 135mm I picked up. It is very well made and solid feeling. The sharpness is more than satisfactory and the colors and bokeh superb - very close to my Series 1 135mm. |
I had same experience with 135mm and 200mm Komura lenses. I expect weak sharpness because very hard to make good sharp 500mm lenses at least I didn't see any, I talk about non-mirror lenses. Hopefully I am wrong let we see I cross my fingers to you. _________________ -------------------------------
Items on sale on Ebay
Sony NEX-7 Carl Zeiss Planar 85mm f1.4, Minolta MD 35mm f1.8, Konica 135mm f2.5, Minolta MD 50mm f1.2, Minolta MD 250mm f5.6, Carl Zeiss Sonnar 180mm f2.8
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indianadinos
Joined: 06 Jul 2008 Posts: 1310 Location: Toulouse, France
Expire: 2011-12-05
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Posted: Wed Sep 15, 2010 9:14 pm Post subject: |
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indianadinos wrote:
Congrats for the "accidental purchase" , i wish i had more like this ...
Hopefully, we'll see soon some samples in the gallery ... _________________ Please visit my blogs Shooting with a Pentax K10D / FF Visions
Takumar: 24/3.5, 28/3.5, 35/2, 35/3.5, 50/1.4, 55/1.8, 85/1.8, 105/2.8, 120/2.8, 135/3.5, 150/4, 200/4
Pentax-K: M28/2.8, K28/3.5, M50/1.4, A50/1.7, M50/4 Macro, K85/1.8, K105/2.8, K135/2.5, M200/4, M70-150/4
Zeiss: Flektogon 20/2.8, 20/4, 35/2.4, 35/2.8, Tessar 50/2.8, Pancolar 50/1.8, Biotar 58/2, Sonnar 135/3.5, Sonnar 180/2.8
Meyer: Primagon 35/4.5, Domiplan 50/2.8, Oreston 50/1.8, Primoplan 58/1.9, Trioplan 100/2.8, Orestor 100/2.8, Orestor 135/2.8
Schacht/Steinheil: Travenar 90/2.8, Travenon 135/4.5, Quinar 135/2.8, Quinar 135/3.5
Russian: MIR 37B, Industar 50/3.5, Helios 44M & 44M-2, Jupiter 37A
P6: Flektogon 50/4, Biometar 80/2.8, Orestor 300/4
Nikkor: Nikkor-O 35/2, Micro 55/3.5, Nikkor-S 50/1.4, Nikkor-Q 135/2.8
Fuji: EBC 28/3.5, EBC 55/3.5 Macro, EBC 135/2.5
Misc Lenses: Kiron 105/2.8 Macro, Tamron SP90/2.5
... and a few other Vivitar, Tamron, Sigma and Soligor lenses ...
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luisalegria
Joined: 07 Mar 2008 Posts: 6627 Location: San Francisco, USA
Expire: 2018-01-18
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Posted: Wed Sep 15, 2010 9:15 pm Post subject: |
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luisalegria wrote:
No picture series unfortunately. I will have to dig up my M39-42 adapter as I have mislaid it. I'm just relating what I did with my own Komuras, I have the 200,300 and 400 of this series. I have an original Komura M42 mount now so I don't have to use this fix.
Just -
1. Unscrew the lens mount adapter tube. You will see an M39 screw
2. Screw on an M39-M42 adapter ring. Lots of these available from Russia.
3. Find an M42 extension ring thats long enough to give you infinity. This is trial and error. Screw on to the M42 thread.
4. Screw on an M42-Sony A adapter.
The key is to find an extension ring thats more-or-less long enough, if I recall correctly I used one thats @25mm. You won't find one thats perfect. You just want it to get to infinity, its OK if it goes a bit over, all you will lose is a foot or less of close focus. _________________ I like Pentax DSLR's, Exaktas, M42 bodies of all kinds, strange and cheap Japanese lenses, and am dabbling in medium format/Speed Graphic work. |
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woodrim
Joined: 14 Jan 2010 Posts: 4060 Location: Charleston
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Posted: Wed Sep 15, 2010 10:37 pm Post subject: |
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woodrim wrote:
The 135mm isn't like that, is it? M39? _________________ Regards,
Woodrim |
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luisalegria
Joined: 07 Mar 2008 Posts: 6627 Location: San Francisco, USA
Expire: 2018-01-18
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Posted: Wed Sep 15, 2010 11:53 pm Post subject: |
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luisalegria wrote:
Nope, there were just four of these Komura Visoflex type lenses that I know of; 200mm, 300mm, 400mm and 500mm.
There was also a series made for Bronica (an interesting set with common focusing mount and interchangable lens heads), but these are quite different.
The only 135mm Komura M39 lenses I know of were rangefinder coupled and they have the rangefinder-type short back-focus. _________________ I like Pentax DSLR's, Exaktas, M42 bodies of all kinds, strange and cheap Japanese lenses, and am dabbling in medium format/Speed Graphic work. |
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woodrim
Joined: 14 Jan 2010 Posts: 4060 Location: Charleston
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Posted: Thu Sep 16, 2010 12:16 am Post subject: |
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woodrim wrote:
luis: What are your impressions of those other three; 200, 300, & 400? Getting at Attila's comments, I'm wondering what to expect. _________________ Regards,
Woodrim |
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luisalegria
Joined: 07 Mar 2008 Posts: 6627 Location: San Francisco, USA
Expire: 2018-01-18
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Posted: Thu Sep 16, 2010 12:28 am Post subject: |
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luisalegria wrote:
400- wonderful ! very sharp wide open, little fringing.
300- lousy. I actually have two of them, one much worse than the other. Very light lens for a 300/5, but if it doesn't deliver...
200 - average for a 200/3.5
I haven't tried any of the 500's, but I have seen good comments on it. _________________ I like Pentax DSLR's, Exaktas, M42 bodies of all kinds, strange and cheap Japanese lenses, and am dabbling in medium format/Speed Graphic work. |
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woodrim
Joined: 14 Jan 2010 Posts: 4060 Location: Charleston
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Posted: Thu Sep 16, 2010 2:12 am Post subject: |
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woodrim wrote:
Luis: PM sent. _________________ Regards,
Woodrim |
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Kathmandu
Joined: 09 Dec 2009 Posts: 1479 Location: (Kathmandu,Nepal. Currently)Pacific Northwest, USA
Expire: 2012-04-08
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Posted: Thu Sep 16, 2010 2:48 am Post subject: |
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Kathmandu wrote:
I am curious how much that set you back -if you care to indulge. |
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woodrim
Joined: 14 Jan 2010 Posts: 4060 Location: Charleston
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Posted: Thu Sep 16, 2010 2:54 am Post subject: |
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woodrim wrote:
$102 with shipping. Given its rarity, I expected it to go much higher. We'll see about the quality after I receive it in another week. I'll be sure to report out here. If you're thinking about my comment about it costing as much as my most expensive lenses, well yes, I'm a tightwad But I've landed some very good lenses, all $100 or less. _________________ Regards,
Woodrim |
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Kathmandu
Joined: 09 Dec 2009 Posts: 1479 Location: (Kathmandu,Nepal. Currently)Pacific Northwest, USA
Expire: 2012-04-08
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Posted: Thu Sep 16, 2010 3:11 am Post subject: |
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Kathmandu wrote:
Congrats on the deal-I think you're a very smart shopper -not a tight wad. Jim's camera in Seattle had one(he may still have it)- it was priced quite a bit above what you paid. |
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woodrim
Joined: 14 Jan 2010 Posts: 4060 Location: Charleston
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Posted: Sat Sep 18, 2010 10:56 pm Post subject: |
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woodrim wrote:
Well, the monster arrived today - just three days - not bad. I have yet to do anything with it and now the lighting is too dim. Tomorrow I will see if I can get a few pictures off by holding it up to the camera. It will take me awhile to get the mount situation straightened out. _________________ Regards,
Woodrim |
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woodrim
Joined: 14 Jan 2010 Posts: 4060 Location: Charleston
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Posted: Sun Sep 19, 2010 7:15 pm Post subject: |
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woodrim wrote:
Today's attempt to use the lens - held to the camera - was a miserable failure. I had a very difficult time focusing and couldn't hold it still enough to get a decent picture. I hope to do better when the mount is converted. If today's pictures were any indication, they are much worse than Attila suggested.
Point of clarification; I actually held the camera to the lens. _________________ Regards,
Woodrim |
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D1N0
Joined: 07 Aug 2012 Posts: 2491
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Posted: Fri Apr 08, 2022 1:35 pm Post subject: |
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D1N0 wrote:
I'll put some images of the lens in this thread (I stumbled over the rear part not knowing what it was so did some research). There are two versions of this. One attaches both parts with a screw mount, the other with a bayonet mount. Also it is possible to attach a filter to the rear of the front part (haven't yet found documentation but I found a pic with filter attached)
With Bayonet:
[/quote]
with filter:
ebay image with both parts in case plus filters:
_________________ pentaxian |
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John Shriver
Joined: 24 Dec 2009 Posts: 192
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Posted: Fri Apr 15, 2022 12:59 am Post subject: |
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John Shriver wrote:
Just to add a extra curve-ball, the mount register of Komura's reflex housing for screw-mount Leica cameras has a longer register than the Leica Visoflex (PLOOT). Like about 5mm longer. Allows a longer mirror. |
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