Pentax-k /m42 adapter with inner flange

[Poolhall]

Just got mine from Alex (HK300) from the mflenses shop and its excellent, works perfectly and is of very high quality material and workmanship. Cannot recommend it enough! , Many thanks Alex your goods and service are excellent, I may well be in touch about focusing screens next.
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Digital:Samsung GX-10 DSLR
Film: Almaz 103, about 30 Zenits M39, M42 and K mount, 5 Yashicas, and a Minox GT
Lenses: Mostly M42 and K mount Russian, Some Yashica, and a couple of Pentax AF.

[Nesster]

I got mine yesterday as well, but haven't yet tried it on. It looks very well made - I'll try every lens I have to see if they stop all the way down.

Thank you Alex!

(I plan to do a presentation of this, with pictures, at Pentax forums, drum up some business for this excellent idea.)

Oh, the cute little cushioned shipping bag with string closure is perfect to hold exposed 120 film.
_________________
-Jussi
Camera photos Print Photographica
35mm: Pentax: SP, ES II, KX, Program Plus, ZX-10, ZX-L, Fuji ST605n, Yashica: TL Electro-X, T4, Olympus OM2s, Nikon FE, EM, Konica Autoreflex TC, C-35,Kodak Retina IIa, IIc, ,Minolta A-2, Fed-3 120: Pentax 645 Voigtlander: Rollfilmkamera 6x9 Skopar 1933, Bessa 6x9 Skopar '37, Bessa 66 6x6 Skopar '38, Bessa I 6x9 & 6x4.5 Vaskar '50s, Certo Super Sport Dolly 1) Xenar '37 2) Victar '38, Ricoh Diacord G, Yashica Mat 124G, lenses: Takumar: Super, S-M-C 3.5/28mm; S-M-C 3.5/35mm; Super, SMC 1.4/50; Macro 4/50, Auto, S-M-C 1.8/55mm, S-M-C 2.8/105mm, Tele 5.6/200mm K-mount: SMC-A 2.8/28mm, SMC-M 1.7/50mm, 43mm and 70mm limited Nikkor: N 2.8/24, 2/35, E1.8/50, Micro 3.5/55 Zuiko: 1.4/50mm, 1.8/50mm, 2/85mm T/T4/Tx: Viv 3.8/21mm, Viv 2.5/28mm, Sol 2.8/105mm, Viv 3.5/200mm, Viv 90-230, Soligor C/D 8/500mm Adaptall: SP 35-80 CF 01a, 80-210 103a, SP 90 Macro 52bb + ext tube + 2x flat field converter Misc M42: Yashinon DX 2.8/35mm, DS-M 1.7/50mm, DX 2.8/135mm, Rikenon 2.8/135mm, too much to list... M39: Jupiter-12, Industar-61

[Xpres]

Mine turned up today and as said it's well made and does the job - fitted beautifully on my Tak' 50/1.4. Unfortunately I was hoping to use it on my sigma but it is just a shade too deep, unless you take out the filter. Seems only the other sort will fit.

So if anyone wants one....? £10 including postage.

BtW - Thanks Alex - great stuff - shame it didn't fit but worth a try. the Tak did stop down fine.
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Film... and sometimes SD14, L10, 5D2 and some other suff!

[rawhead]

Hi, got mine too; one problem with mine, though. If I twist the lens clockwise just a little strongly, then the adapter continues to turn clockwise, and the lens becomes loose. Shouldn't there be a stopper somewhere? I'm a bit bummed because some of my M42 lenses have tight helicoids, which require a rather firm twist to focus. If it weren't for that, I'd love this adapter, which, despite the inclusion of the "removal tool" doesn't require it, and can be removed with my fingers, just like the genuine Pentax adapter
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Pentax K-7, EOS 5D Mk II, Panasonic Lumix DMC-GF1, Kiev-60/-6C, Hasselblad 501CM, Hasselblad Super Wide C, Graflex Norita 66, Mamiya M645 1000s, Graflex Pacemaker Speed Graphic, Rolleiflex SL66, Rolleiflex 2.8C Planar, lots of K & M42, six P6, five Hasselblad, four OM, three F, two Mamiya 645, one Noritar, and a sprinkle of EF (but not a single Canon :-p). Oh, and an Aero Ektar.

[Poolhall]

Actually since I've used mine the same has happened. It seems the end of the lug after the flexible end of the spring clip is angled, and it can slide over the stopper. The answer in my case was to grind it flat (or vertical in fact) with a dremel, and problem solved, took about a minute, there is a slighht play but it won't go past the stopper any more. If you have another infinity focus PK adapter and compare the 2 you will see what I mean. Hope this helps
_________________
Digital:Samsung GX-10 DSLR
Film: Almaz 103, about 30 Zenits M39, M42 and K mount, 5 Yashicas, and a Minox GT
Lenses: Mostly M42 and K mount Russian, Some Yashica, and a couple of Pentax AF.

[rawhead]

[RTOGOG]

Hello,

I tried mine w/ third party K mount adapter from Ebay.I turn my M42 lens clockwise (Pentacon 135,f2. .It sit about 15 degree before it should be stopped (from the Top).
Is it a normal condition for lenses other than Pentax M42?

Cheers,
RTogog

[Poolhall]

The position can vary depending on where the thread of the screw inside the adapter begins, I had one where the m42 lens was upside down, it worked but you couldn't see any of the setttings Better quality adapters are usually like yours fairly close if not necessarily perfect.
_________________
Digital:Samsung GX-10 DSLR
Film: Almaz 103, about 30 Zenits M39, M42 and K mount, 5 Yashicas, and a Minox GT
Lenses: Mostly M42 and K mount Russian, Some Yashica, and a couple of Pentax AF.

[Nesster]

I used mine carefully having read the comments here and haven't had a problem. All the various lenses I tried stopped all the way down, but I haven't yet found (!) all my M42 lenses to try.

I have a Rikenon 28mm that stops with the settings are 45 degrees past 12 noon. Kind of useless with regular cameras - the pin also is 45 degrees off where it should be. Once I find the damn thing I'll try it with this adapter, it should at least be usable. I'll have to take the bottom off the lens to see if I can re-attach 1/3 of the way back, and still have the aperture pin mechanism work...
_________________
-Jussi
Camera photos Print Photographica
35mm: Pentax: SP, ES II, KX, Program Plus, ZX-10, ZX-L, Fuji ST605n, Yashica: TL Electro-X, T4, Olympus OM2s, Nikon FE, EM, Konica Autoreflex TC, C-35,Kodak Retina IIa, IIc, ,Minolta A-2, Fed-3 120: Pentax 645 Voigtlander: Rollfilmkamera 6x9 Skopar 1933, Bessa 6x9 Skopar '37, Bessa 66 6x6 Skopar '38, Bessa I 6x9 & 6x4.5 Vaskar '50s, Certo Super Sport Dolly 1) Xenar '37 2) Victar '38, Ricoh Diacord G, Yashica Mat 124G, lenses: Takumar: Super, S-M-C 3.5/28mm; S-M-C 3.5/35mm; Super, SMC 1.4/50; Macro 4/50, Auto, S-M-C 1.8/55mm, S-M-C 2.8/105mm, Tele 5.6/200mm K-mount: SMC-A 2.8/28mm, SMC-M 1.7/50mm, 43mm and 70mm limited Nikkor: N 2.8/24, 2/35, E1.8/50, Micro 3.5/55 Zuiko: 1.4/50mm, 1.8/50mm, 2/85mm T/T4/Tx: Viv 3.8/21mm, Viv 2.5/28mm, Sol 2.8/105mm, Viv 3.5/200mm, Viv 90-230, Soligor C/D 8/500mm Adaptall: SP 35-80 CF 01a, 80-210 103a, SP 90 Macro 52bb + ext tube + 2x flat field converter Misc M42: Yashinon DX 2.8/35mm, DS-M 1.7/50mm, DX 2.8/135mm, Rikenon 2.8/135mm, too much to list... M39: Jupiter-12, Industar-61

[Poolhall]

All the ones I tried have fully stopped down too, it means I can use my Yashinon auto and later Russian auto lenses with happy results, so on the whole its a good piece of equipment and well worth the money thanks again Alex
_________________
Digital:Samsung GX-10 DSLR
Film: Almaz 103, about 30 Zenits M39, M42 and K mount, 5 Yashicas, and a Minox GT
Lenses: Mostly M42 and K mount Russian, Some Yashica, and a couple of Pentax AF.

[estudleon]

The adaptor K/M42 made by Hoya is good?

Rino.
_________________
Konica 2,8/100
CZJ: 4/20, 2,4/35, 1,8/50 aus jena, 3,5/135MC, Pentacon 1,8/50
Pentax S-M-C-1,4/50
Helios 44-3
Mamiya 2,8/135
Misc. : jupiter 9

Stuff used:
A) SRL
Alpa 10 D - kern macro Switar 1,9/50 -black, Kilffit apochromat 2/100.
Asahi pentax spotmatic super takumar 1,4/50
Contaflex super B tessar 2,8/50 Pro-tessar 115
Leica R3 electronic summicron 2/50 elmarit 2,8/35
Konica Autoreflex 3 (2 black and chrome one), TC, T4. 2,8/24, 3,5/28 not MC and MC, 1,8/40, 1,4/50, 1,7/50 MC and not MC, 1,8/85, 3,2/135, 3,5/135, 4/200
Minolta XG9 2,8/35, 2/45, 3,5/135
Nikkormat FTn 1,4/50, 2,8/135
Fujica ST 801, 605, 705n. 3,5/19, 1,4/50, 1,8/55, 4/85, 3,5/135.
Praktica MTL 5 and a lot of M42 lenses.
Voigtlander. Bessamatic m, bessamatix de luxe, bessamatic cs, ultramatic and ultramatic cs.
Skoparex 3,5/35, skopagon 2/40, skopar 2,8/50, skopar X 2,8/50, super lanthar (out of catalogue) 2,8/50, dinarex 3,4/90, dinarex 4,8/100, super dinarex 4/135, super dinarex 4/200, zoomar 2,8/36-83, portrait lens 0, 1 and 2. Curtagon 4/28 and 2,8/35
Canon AV1, 1,8/50
Rolleiflex SL35 and SL35 E. 2,8/35 angulon, 2,8/35 distagon, 1,4/55 rolleinar, 1,8/50 planar, 4/135 tessar, 2,8/135 rolleinar, x2 rollei, M42 to rollei adap.
Etc.

RF
Yashica Minister III
Voightlander Vito, vitomatic I, Vito C, etc.
Leica M. M2, M3 (d.s.) and M4. Schenider 3,4/21, 2/35 summaron 2,8/35 (with eyes). Summicron 2/35 (8 elements with eyes), 2/35 chrome, 2/35 black, 1,4/35 pre asph and aspheric - old -, 2/40 summicron, 2,8/50 elmar, 2/50 7 elements, 2/50 DR, 2/50 - minolta version, 1,4/50 summilux 1966 version, 1,4/75 summilux, 2/90 large version, 2/90 reduced version of 1987, 2,8/90 elmarit large version, 4/135 elmar.

[Univer]

Hi,

Just wanted to say thanks for the Dremel suggestion. I ran into the same issue with my adapter - which has otherwise worked perfectly - and a little bit of careful grinding seems to have cured it completely. (It took me a little longer than a minute, but that's entirely attributable to the user's skill level.)

I thought it might not be a bad thing, also, to bump this thread up - just in case other folks are encountering the same issue.

Cheers,

Jon

[Jesito]

[Poolhall]

I will try to get a photo of it tomorrow morning Jes so you can see the modification
Edit managed a quick shot with flash I hope this will show it ok

Where the arrow is pointing is where the edge of the lug needs to be ground off square, with a vertical cut downwards. You can see where I did it as the brass colour is showing though. This should stop the adapter riding over the stopper in the mount. I hope this is ok for you Jes I can try to post some more shots if you need
_________________
Digital:Samsung GX-10 DSLR
Film: Almaz 103, about 30 Zenits M39, M42 and K mount, 5 Yashicas, and a Minox GT
Lenses: Mostly M42 and K mount Russian, Some Yashica, and a couple of Pentax AF.

[rawhead]

To be quite frank, this "modification" should not be necessary for a paid product. Hopefully new batches will have this issue pre-resolved.
_________________
Pentax K-7, EOS 5D Mk II, Panasonic Lumix DMC-GF1, Kiev-60/-6C, Hasselblad 501CM, Hasselblad Super Wide C, Graflex Norita 66, Mamiya M645 1000s, Graflex Pacemaker Speed Graphic, Rolleiflex SL66, Rolleiflex 2.8C Planar, lots of K & M42, six P6, five Hasselblad, four OM, three F, two Mamiya 645, one Noritar, and a sprinkle of EF (but not a single Canon :-p). Oh, and an Aero Ektar.