Anyone have any experience with Komura lenses

[xkaes]

There are the Komura lenses that I can find -- supposedly -- for 4x5 cameras. There may be others.

75mm f/6.3, filter size 72mm
152mm f/2.8, filter size 77mm
300mm f/5.0, filter size 67mm
400mm f/6.3, filter size 67mm
500mm f/7.0, filter size 77mm

[Tin Can]

Komura = Horseman

[Daniel Unkefer]

I have two really huge Komura 4x5 lenses, in Seiko Shutters. The 75mm and the 90mm. I also have the Uber BEEG 90mm Lens Hood. Looks impressive, looking forward to testing it as I have time. Look good on Plaubel Peco Profia 4x5s.

[Ulophot]

I have had the 210 f/6.3 "Commercial" for decades. Copal 1. Lots of coverage for 4x5, plenty sharp for me. Coating my be single; I'm not sure. Purchased used c. 1980.

[Dan Fromm]

Komura = Horseman

No. Tokyo Optical = Horseman

[Dan Fromm]

There are the Komura lenses that I can find -- supposedly -- for 4x5 cameras. There may be others.

75mm f/6.3, filter size 72mm
152mm f/2.8, filter size 77mm
300mm f/5.0, filter size 67mm
400mm f/6.3, filter size 67mm
500mm f/7.0, filter size 77mm

See "the list."

[Steve Goldstein]

Good news/bad news about the 75mm:

Good - it has quite a long flange focal length, around 100mm, so you might not need a recessed lens board even if you do with other 75s.

Bad - it's very tight on coverage (image circle 158mm) for 4x5.

Both according to the old spec pages you can find on the web.

[xkaes]

Komura made some stand-out lenses for 35mm cameras, too, like the Komura Sankyo Kohki 85mm f/1.4 and a 100mm f1.8. In my exploration into their lenses, I ran across them. These two were early pre-set which cam in various mounts. And here's something I never heard before:

"In the 1970s, the company developed the Komura Unidapter System that allowed their 35mm interchangeable lenses to mount to "practically all Japanese-made and a number of European-made reflexes - as well as 16mm cine cameras with C mount" Komura Unidapter adapters known to exist include Canon FL, Exakta, M42 (Pentax/Practica), Miranda Sensorex, Nikon F, Minolta, Ricoh Singlex, Petri, and Topcon D-1."

[Bernice Loui]

The 152mm f2.8 Komura
230798

230799

has gone the same market way as the 150mm f2.8 Xenotar, 135mm f3.5 Xenotar, 135mm f3.5 Planar... 6" f2.5 Aero Ektar.... remarkable $ (four figures U$D) for what once were un-desierable large aperture lenses that "just" image circle enough for 4x5.. Much about the current fashion thing amoung those new to sheet film carrying on their digital/roll film ways, values, habits...
https://www.largeformatphotography.info/forum/showthread.php?155898-152mm-f-3-5-amp-2-8-KOMURA-experiences-wanted

Komura was know for their version of Kodak Commercial Ektar that appeared with other brands doing similar after Kodak got out of the LF lens business..

There was a time not too long ago when Komura, Yamasaki Optical and other lesser known view camera lens folks where considered greatly lesser to the "big four". That has changed lots in recent times..

IMO, Komura like other lens brands will have plus/minus trade-offs.. There is no idea magical_miracle lens, just the lens that has some chance or ability to meet the needs of specific image goals...


Bernice





There are the Komura lenses that I can find -- supposedly -- for 4x5 cameras. There may be others.

75mm f/6.3, filter size 72mm
152mm f/2.8, filter size 77mm
300mm f/5.0, filter size 67mm
400mm f/6.3, filter size 67mm
500mm f/7.0, filter size 77mm

[xkaes]

That's a hunk-a glass!

[Daniel Unkefer]

https://live.staticflickr.com/65535/52394252557_5d3f20b323_b.jpg (https://flic.kr/p/2nPUeU2)4x5 Plaubel Peco Profia 90mm F6.3 Komura Original 90mm Komura Hood (https://flic.kr/p/2nPUeU2) by Nokton48 (https://www.flickr.com/photos/18134483@N04/), on Flickr

The lens hood cost nearly as much as the lens! LOL

Plaubel Peco Profia 4x5 ready for shooting architectural, Profia Bag Bellows, ingenious clamping 4x5 film holder (best I have seen!), Profia Monocular Magnifier/Bag Bellows on the back for stylish comfortable viewing. In the original Profia catalog is the 90mm F6.3 Komura in Seiko Shutter. The Lenshood for this lens is humungeous and attention getting. The Julius Shulman inspired modded Leitz Tiltall tripod is perfect, quick and dependable to use, quite solid after a few seconds. Sharp enough to make big prints. I also have the matching 75mm F6.3, the humungeous companion to this lens. Both of these lenses recess into the Profia Recessed board, this board will also accomodate all of my Makiflex boards, and also my Peco Jr boards, with the additional stepdown board, which I cobbled together with stuff from the parts box.

[Daniel Unkefer]

https://live.staticflickr.com/65535/52395448194_01814b4ae9_b.jpg (https://flic.kr/p/2nQ1njs)Plaubel Peco Profia 75mm f6.8 Komura (https://flic.kr/p/2nQ1njs) by Nokton48 (https://www.flickr.com/photos/18134483@N04/), on Flickr

Plaubel Peco Profia 4x5 ready for shooting architectural, Profia Bag Bellows, ingenious clamping 4x5 film holder (best I have seen!), Profia Monocular Magnifier/Bag Bellows on the back for stylish comfortable viewing. In the original Profia catalog is the 75mm F6.3 Komura in Seiko Shutter. The Julius Shulman inspired modded Leitz Tiltall tripod is perfect, quick and dependable to use, quite solid after a few seconds. Sharp enough to make big prints. I also have the matching 90mm F6.3, the humungeous companion to this lens. Both of these lenses recess into the Profia Recessed board, this board will also accomodate all of my Makiflex boards, and also my Peco Jr boards, with the additional stepdown board, which I cobbled together with stuff from the parts box.

I'll bet they made a hood for this I've never seen one.

[John Layton]

Daniel I'd love to see more of that Plaubel's "ingenious 4x5 clamping film holder,"...could you show us?

[Daniel Unkefer]

https://live.staticflickr.com/65535/52397308123_dd22190fbd_b.jpg (https://flic.kr/p/2nQaUdc)Peco Profia 4x5 Graflex Plate Holder 1 (https://flic.kr/p/2nQaUdc) by Nokton48 (https://www.flickr.com/photos/18134483@N04/), on Flickr

Plaubel Profia Graflex Plate Holder. Step 1: Squeeze the tabs together, pull outwards until the mechanism is fully open, at which point it locks in open position. At that point it will accept plate holder.

https://live.staticflickr.com/65535/52397241260_0392d244f7_b.jpg (https://flic.kr/p/2nQayko)SONY DSC (https://flic.kr/p/2nQayko) by Nokton48 (https://www.flickr.com/photos/18134483@N04/), on Flickr

Plaubel Peco Holder Step 2: The mechanism is locked fully open ready to accept Graflex plate holder

https://live.staticflickr.com/65535/52396297422_1754f97656_b.jpg (https://flic.kr/p/2nQ5HLj)SONY DSC (https://flic.kr/p/2nQ5HLj) by Nokton48 (https://www.flickr.com/photos/18134483@N04/), on Flickr

Peco Profia Step 3: Graflex Plate Holder inserted which releases spring tension, clamping around the holder. When the rear portion closes down onto the holder, it is not going anywhere, very tight arrangement. The spring loaded tabs have snapped back to original position.