M42


Bobbinalorry

Link Posted 07/05/2010 - 19:17
Hi Pentax people,
I have just been given some M42 lenses, all a bit grubby & in need of a bit of a clean; Does anyone here know anything about these/ Are they worth the cost of sending to a specialist optic cleaner?

Hanimex1:2.8,f28mm.
Asahi Takumar 1:3.5/200
Vivtar 75-205 1:3.8 close focusing auto zoom
Asahi Super Takumar 1:2/55
Asahi Takumar 1:2.8/105 ( this one a bit wobbly)
Also Prinz Galaxy Auto 3xconverter
Vivitar 2500 electronic flash (any good?)
S1 A body
SP100 body
And a peculiar Asahi Pentax meter that appears to sit on top of the viewfinder?


I'd be obliged for any info.

Regards to all, Larry
Best Regards, Larry.

All the gear & no idea.

bwlchmawr

Link Posted 07/05/2010 - 19:52
I love using my M42 lenses but I have odd tastes! Matter of fact just had a great morning with an ancient 35mm Hanimex.

Not sure how much cleaning would cost...my guess would be, a lot!

Best wishes,

Andrew
Best wishes,

Andrew

"These places mean something and it's the job of a photographer to figure-out what the hell it is."
Robert Adams
"The camera doesn't make a bit of difference.  All of them can record what you are seeing.  But, you have to SEE."
Ernst Hass
My website: http://www.ephotozine.com/user/bwlchmawr-199050 http://s927.photobucket.com/home/ADC3440/index
https://www.flickr.com/photos/78898196@N05

womble

Link Posted 07/05/2010 - 20:06
Asahi Takumar f/3.5 200mm was produced between 1959 and 1966 in two versions. It is a preset lens, i.e., you have to open up and stop down the aperture manually.

The Super Takumar f/2 55mm lens was the cheapest of the standard lenses (it also come in a f/1.8 version). It was produced in a wide variety of versions between 1962 and 1973. It is a pretty nice lens.

The Asahi Takumar f/2.8 105mm lens was produced in two versions between 1958 and 1968. Again, it is a preset lens like the 200mm version.

The S1a was a basic pre-Spotmatic camera in two versions between 1962 and 1968. It doesn't have an in-built light meter and the "peculiar" one does indeed sit on top of the pentaprism housing and couples with the shutter dial. The later model has an orange R on the rewind knob. This is only important if you ever try and use a Super Takumar 50mm f/1.4 lens as that one won't work with the earlier model S1a.

The SP1000 was produced between 1973 and 1976 and was the budget model of the range at that time, with the Spotmatic F and ESII being the more expensive offerings.

Hope that helps!

Kris.
Kris Lockyear
It is an illusion that photos are made with the camera… they are made with the eye, heart and head. Henri Cartier-Bresson
Lots of film bodies, a couple of digital ones, too many lenses (mainly older glass) and a Horseman LE 5x4.

My website
Last Edited by womble on 07/05/2010 - 20:07

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johnriley

Link Posted 07/05/2010 - 20:55
Not everyone will realise that many of the screw thread 55mm lenses marked f2 were in fact f1.8 lenses with a baffle put inside to reduce the aperture. Along with a different aperture ring with new markings. This was presumably lower cost than making a second production line of different lenses.

So the f2 lenses are every bit as good as the f1.8 ones.
Best regards, John

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Bobbinalorry

Link Posted 08/05/2010 - 09:21
All you good people here are an incredible font of information!
Like a lorry load of photographic historians is what you lot are
Absolutely brilliant.
Now I have to ask you please, what do I look for in the way of M42 to Pentax adapters?
I have had a bit of a look and notice that there are different types / prices on offer. Are there some better than others? are some no good at all?

Regards, Larry.
Best Regards, Larry.

All the gear & no idea.

JohnX

Link Posted 08/05/2010 - 09:38
M42 adapters. Ideally buy Pentax, but in any event make sure you buy one that sits inside the lens mount on the camera, not the type with a flange that sits on the mount.

The differance is infinity focus; you won't get it with the on-mount version, but will with the in-mount.

Hope that makes sense

John

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Lloydy

Link Posted 08/05/2010 - 16:22
http://www.srb-griturn.com/m42-lenses-on-pentax-k-206-p.asp

I use these adaptors and find the quality and fit as good as a genuine Pentax one that I have, SRB's adaptors are just way cheaper.

Bobbinalorry

Link Posted 08/05/2010 - 16:57
Lloydy wrote:
http://www.srb-griturn.com/m42-lenses-on-pentax-k-206-p.asp

I use these adaptors and find the quality and fit as good as a genuine Pentax one that I have, SRB's adaptors are just way cheaper.

Yes, thank you so much; I did buy one from Griturn recently (nice people, are'nt they) but I don't get on wth it too well. I find it gets kinda stuck and difficult to remove from the camera. I have to have 3 hands so to fiddle with the little springy bit in order to get it off How do you manage?

Regards, Larry
Best Regards, Larry.

All the gear & no idea.

Lloydy

Link Posted 08/05/2010 - 22:15
I have 4 of them and they all work perfectly. I also have one genuine Pentax adaptor to compare them to, and honestly, I can see no effective difference.
I have worked as a quality control manager in a precision engineering environment so I have a critical eye for engineering quality.

I have no connection, or loyalty to SRB, I have just found their adaptors and some other products well up to the standards I expect.

I never use the 'tool' to remove the adaptor though, I just use a fingernail or the small screwdriver attachment of my multitool.
And on some lenses I have removed the spring and just tighten the adaptor onto the lens with a lens cap.
I've never had a lens fall off yet.
Last Edited by Lloydy on 08/05/2010 - 22:19

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Bobbinalorry

Link Posted 08/05/2010 - 22:49
Lloydy wrote:
I have 4 of them and they all work perfectly. I also have one genuine Pentax adaptor to compare them to, and honestly, I can see no effective difference.
I have worked as a quality control manager in a precision engineering environment so I have a critical eye for engineering quality.

I have no connection, or loyalty to SRB, I have just found their adaptors and some other products well up to the standards I expect.

I never use the 'tool' to remove the adaptor though, I just use a fingernail or the small screwdriver attachment of my multitool.
And on some lenses I have removed the spring and just tighten the adaptor onto the lens with a lens cap.
I've never had a lens fall off yet.

Thank's, as you suggest, I just took off the little leaf spring and you are quite right, thank you
Best Regards, Larry.

All the gear & no idea.

beachboy2

Link Posted 10/05/2010 - 13:23
If its a non Pentax adaptor definitely remove the little tab and screw(s). Some people have had much trouble with these adaptors being stuck on the camera! Still works fine without the tab.
bb2

K5, K20D, Bigma, Sigma EX 105, Sigma EX 10-20, Sigma EX 28-70 F2.8, Sigma Ex 1.4TC,
Pentax 135 F3.5, Pentax 30mm F2.8 , Pentax 50mm F1.7, Pentax 55mm F1.8,
Super Taks: 35mm F3.5, 50mm F1.4, 135mm F3.5, 200mm F4
Vivitar TX 200mm F3.5,Vivitar (Komine)135mm f2.8, Vivitar 2X TC, Vivitar T4 400mm F6.3
Tamron SP 35-80,80-210 F3.8, Helios 44M, Mir 1B 37mm F2.8, Jupiter 9 85mm F2, Chinon 28mm F2.8, 3M-5A 500mm F8 etc etc

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Dangermouse

Link Posted 10/05/2010 - 16:42
If they're just grubby on the outside then don't bother with a professional cleaner. I use cotton buds and screen cleaning spray to get dirt/dust off followed by a lens pen to clean the glass.

Many of the Takumar designs were adapted by Pentax to become the first K mount lenses, of which I have a handful. The 55mm is a very nice piece of kit indeed, although mine seems to have taken up residence on a KM so doesn't see much action on digital now!
Matt

Shooting the Welsh Wilderness with K-m, KX, MX, ME Super and assorted lenses.

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Bobbinalorry

Link Posted 10/05/2010 - 22:14
Thank you all, very much.
Best Regards, Larry.

All the gear & no idea.

MrCynical

Link Posted 11/05/2010 - 00:54
Bobbinalorry wrote:
I have to have 3 hands so to fiddle with the little springy bit in order to get it off How do you manage?

Regards, Larry

You have to do that with the Pentax one too, though it isn't a spring so much as a fiddly microscopic lever that requires a fingernail to operate.
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