M37 thread mount

[fimiank]

I have what appears to be a great lens that I would like to use with my m43 system:

It is a heavy lens that by just handling it screams quality: Tele - Takumar 1:6.5 135mm. M37 screw mount. Any suggestions for adapter to m43?

--
Kjell

 

[Ching-Kuang Shene]

I have what appears to be a great lens that I would like to use with my m43 system:

It is a heavy lens that by just handling it screams quality: Tele - Takumar 1:6.5 135mm. M37 screw mount. Any suggestions for adapter to m43?

Get a 37-39 thread converter and then a M39 to M4/3 Adapter. This is all you need because I am us8ng such a setupfor more than a year, but this setup is for NEX.

CK

 

[fimiank]

I have what appears to be a great lens that I would like to use with my m43 system:

It is a heavy lens that by just handling it screams quality: Tele - Takumar 1:6.5 135mm. M37 screw mount. Any suggestions for adapter to m43?

Get a 37-39 thread converter and then a M39 to M4/3 Adapter. This is all you need because I am us8ng such a setupfor more than a year, but this setup is for NEX.

CK

Thank you.

-
Kjell

 

[Abbazz]

I have what appears to be a great lens that I would like to use with my m43 system:

It is a heavy lens that by just handling it screams quality: Tele - Takumar 1:6.5 135mm. M37 screw mount. Any suggestions for adapter to m43?

I guess the lens you are talking about is the Tele-Takumar f/3.5 135mm. The first version of this lens was made in 1953 in M37 mount for the Asahiflex camera. You can find some information on this lens here . To use it on your camera, you will need an M42 to Micro 4/3 adapter and also this adapter (M37 to M42):

https://www.ebay.com/itm/M37-to-M42-37mm-42mm-Asahiflex-Lens-to-M42-Lens-adapter-Ring/202268196482

Cheers!

Abbazz

 

[Lightshow]

I have what appears to be a great lens that I would like to use with my m43 system:

It is a heavy lens that by just handling it screams quality: Tele - Takumar 1:6.5 135mm. M37 screw mount. Any suggestions for adapter to m43?

I guess the lens you are talking about is the Tele-Takumar f/3.5 135mm. The first version of this lens was made in 1953 in M37 mount for the Asahiflex camera. You can find some information on this lens here . To use it on your camera, you will need an M42 to Micro 4/3 adapter and also this adapter (M37 to M42):

https://www.ebay.com/itm/M37-to-M42-37mm-42mm-Asahiflex-Lens-to-M42-Lens-adapter-Ring/202268196482

Cheers!

Abbazz

 

[Lightshow]

I have what appears to be a great lens that I would like to use with my m43 system:

It is a heavy lens that by just handling it screams quality: Tele - Takumar 1:6.5 135mm. M37 screw mount. Any suggestions for adapter to m43?

Please post a picture of your adapter and lens mounted, I believe you are mistaken.

Get a 37-39 thread converter and then a M39 to M4/3 Adapter. This is all you need because I am us8ng such a setupfor more than a year, but this setup is for NEX.

CK

Thank you.

-
Kjell

An M39 adapter will not have the correct register, the lens will likely sit too close to the sensor, nothing will be in focus.

 

[fimiank]

I have what appears to be a great lens that I would like to use with my m43 system:

It is a heavy lens that by just handling it screams quality: Tele - Takumar 1:6.5 135mm. M37 screw mount. Any suggestions for adapter to m43?

I guess the lens you are talking about is the Tele-Takumar f/3.5 135mm. The first version of this lens was made in 1953 in M37 mount for the Asahiflex camera. You can find some information on this lens here . To use it on your camera, you will need an M42 to Micro 4/3 adapter and also this adapter (M37 to M42):

https://www.ebay.com/itm/M37-to-M42-37mm-42mm-Asahiflex-Lens-to-M42-Lens-adapter-Ring/202268196482

Cheers!

Abbazz

 

[Ching-Kuang Shene]

I have what appears to be a great lens that I would like to use with my m43 system:

It is a heavy lens that by just handling it screams quality: Tele - Takumar 1:6.5 135mm. M37 screw mount. Any suggestions for adapter to m43?

Get a 37-39 thread converter and then a M39 to M4/3 Adapter. This is all you need because I am us8ng such a setupfor more than a year, but this setup is for NEX.

CK

Thank you

Forgot to mention: I used a M39 to NEX adapter with helicoid. Most if not all adapters made in China suffer from the infinity focusing issue. As a result, I do my best to replace my fixed length adapters with adapters with helicoid. Strongly suggest you to go this approach because failing to focus at distant objects is usually frustrating. You certainly can go with a 42-37 thread converter and a M42 to NEX adapter. I have this setup too. I used the 39-37 thread converter because I have a good 37-NEX adapter with helicoid.

CK

 

[petrochemist]

An M39 adapter will not have the correct register, the lens will likely sit too close to the sensor, nothing will be in focus.

Unlike M42x1, m39x1 lenses have been made in a wide variety of registrations.

Their are rangefinder variants (usually called LTM mount) with 28.8mm registration, Zenit SLR variants with 45.46mm registration and also numerous enlarger lenses with no particular registration - back focal distance is generally close to their focal length but is no real significance in their intended role.

Adapters have certainly been made for both SLR & rangefinder variants.

Checking my records there's also a M39x1 Paxette screw mount at 44mm registration, and a Leitz Viscoflex I mount which is M39x26tpi & has 62/5mm registration.

Some sources claim the LTM is 26tpi rather than with a metric pitch of 1, the two are very similar.

 

[petrochemist]

I have what appears to be a great lens that I would like to use with my m43 system:

It is a heavy lens that by just handling it screams quality: Tele - Takumar 1:6.5 135mm. M37 screw mount. Any suggestions for adapter to m43?

Get a 37-39 thread converter and then a M39 to M4/3 Adapter. This is all you need because I am us8ng such a setupfor more than a year, but this setup is for NEX.

CK

Thank you

Forgot to mention: I used a M39 to NEX adapter with helicoid. Most if not all adapters made in China suffer from the infinity focusing issue. As a result, I do my best to replace my fixed length adapters with adapters with helicoid. Strongly suggest you to go this approach because failing to focus at distant objects is usually frustrating. You certainly can go with a 42-37 thread converter and a M42 to NEX adapter. I have this setup too. I used the 39-37 thread converter because I have a good 37-NEX adapter with helicoid.

CK

One slight problem, the only adapter I have that can't reach infinity focus is a helicoid version which is 0.25mm too long at it's shortest. All the others focus beyond infinity so loose out on the close focusing end.

If your keen on close-up macro shooting, or wish to use lenses with no focusing control the helicoid adapters are a real bonus, but direct from camera mount to lens mount is not guaranteed to work.

 

[Ching-Kuang Shene]

I have what appears to be a great lens that I would like to use with my m43 system:

It is a heavy lens that by just handling it screams quality: Tele - Takumar 1:6.5 135mm. M37 screw mount. Any suggestions for adapter to m43?

Get a 37-39 thread converter and then a M39 to M4/3 Adapter. This is all you need because I am us8ng such a setupfor more than a year, but this setup is for NEX.

CK

Thank you

Forgot to mention: I used a M39 to NEX adapter with helicoid. Most if not all adapters made in China suffer from the infinity focusing issue. As a result, I do my best to replace my fixed length adapters with adapters with helicoid. Strongly suggest you to go this approach because failing to focus at distant objects is usually frustrating. You certainly can go with a 42-37 thread converter and a M42 to NEX adapter. I have this setup too. I used the 39-37 thread converter because I have a good 37-NEX adapter with helicoid.

CK

One slight problem, the only adapter I have that can't reach infinity focus is a helicoid version which is 0.25mm too long at it's shortest. All the others focus beyond infinity so loose out on the close focusing end.

Hmmm. I do think you got it wrong. I am using a M39 to NEX adapter with helicoid. The lenses being used were Asahiflex lenses and Carl Zeiss Jena Triotar 8.5cm f/4 rather than M39 lenses. In fact, I also used this setup for adapting shorter focal length enlarging lenses such as Minolta 30mm and Nikon 40mm enlaring.
CK

 

[petrochemist]

I have what appears to be a great lens that I would like to use with my m43 system:

It is a heavy lens that by just handling it screams quality: Tele - Takumar 1:6.5 135mm. M37 screw mount. Any suggestions for adapter to m43?

Get a 37-39 thread converter and then a M39 to M4/3 Adapter. This is all you need because I am us8ng such a setupfor more than a year, but this setup is for NEX.

CK

Thank you

Forgot to mention: I used a M39 to NEX adapter with helicoid. Most if not all adapters made in China suffer from the infinity focusing issue. As a result, I do my best to replace my fixed length adapters with adapters with helicoid. Strongly suggest you to go this approach because failing to focus at distant objects is usually frustrating. You certainly can go with a 42-37 thread converter and a M42 to NEX adapter. I have this setup too. I used the 39-37 thread converter because I have a good 37-NEX adapter with helicoid.

CK

One slight problem, the only adapter I have that can't reach infinity focus is a helicoid version which is 0.25mm too long at it's shortest. All the others focus beyond infinity so loose out on the close focusing end.

Hmmm. I do think you got it wrong. I am using a M39 to NEX adapter with helicoid. The lenses being used were Asahiflex lenses and Carl Zeiss Jena Triotar 8.5cm f/4 rather than M39 lenses. In fact, I also used this setup for adapting shorter focal length enlarging lenses such as Minolta 30mm and Nikon 40mm enlaring.

CK

You mentioned 'I do my best to replace my fixed length adapters with adapters with helicoid. '

I like the idea but was pointing out a possible limitation of it.

Personally I tend to use a MFT to EOS helicoid, with added adapters from EOS to my lenses (or further helicoids) this gives infinity focus with all compatible lens mounts along with up to 12mm extension to get the lens focusing closer.

Sometimes the helicoid adapter is replaced with a focal reducer, or even a tilting adapter. This gives me the greatest range of addition options with minimal outlay & bulk in my kit. Some of my adapted lenses don't work via EOS, but most do.

The few direct adapters I do use (usually MFT-MD & MFT-A) have now been shimmed to bring their lengths closer to the correct value, so less of the focusing range is lost. This was rather important for my only A-mount lens (a 10mm /2.8) where the focusing ring had to be turned nearly all the way to minimum to get focus down to infinity. So far I've not had a need to focus beyond infinity

 

[Lightshow]

An M39 adapter will not have the correct register, the lens will likely sit too close to the sensor, nothing will be in focus.

Unlike M42x1, m39x1 lenses have been made in a wide variety of registrations.

Their are rangefinder variants (usually called LTM mount) with 28.8mm registration, Zenit SLR variants with 45.46mm registration and also numerous enlarger lenses with no particular registration - back focal distance is generally close to their focal length but is no real significance in their intended role.

Adapters have certainly been made for both SLR & rangefinder variants.

Checking my records there's also a M39x1 Paxette screw mount at 44mm registration, and a Leitz Viscoflex I mount which is M39x26tpi & has 62/5mm registration.

Some sources claim the LTM is 26tpi rather than with a metric pitch of 1, the two are very similar.

I didn't go to into all the details of versions as that was out of the scope of this thread, I had posted in a thread recently on this subject, I debated posting the link.

Loading…

www.fredmiranda.com

 

[nigbat]

By co-incidence (or perhaps because you prompted me to get around to it...), I have a copy of this lens which had a significant amount of fungus inside it.

Having finally summoned up the courage, I opened it up. The from group can be removed by taking off the aperture ring, which is secured by three tiny grub screws - be very careful not to lose them should you ever attempt this. The ring then just lifts off the front of the lens, exposing the single grub screw which secures the front group, shown here in the centre of the picture -





I was very lucky that the fungus was confined to the exposed rear face of the group, and cleaned off easily with an application of Residual Oil Remover. You can seem how much there was on the lens cleaning tissue - all from this lens face alone:





Apart from (carefully, so as not to disturb the aperture mechanism) blowing out some dust inside, no further cleaning was necessary.

 

[nigbat]

Using an M37-M42 ring, and an M42 helicoid adapter, a couple of closeup test shots. Pretty good performance...