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i bought this lens on ebay.
wtf kind of mount is this?
is it damaged?
[EXIF data available. Click here to show/hide.]
Camera-Specific Properties: Equipment Make Canon Camera Model Canon EOS M Camera Software Adobe Photoshop CC 2015 (Windows) Maximum Lens Aperture f/2.0 Image-Specific Properties: Image Orientation Top, Left-Hand Horizontal Resolution 240 dpi Vertical Resolution 240 dpi Image Created 2016:10:09 21:35:28 Exposure Time 1/30 sec F-Number f/4.0 Exposure Program Aperture Priority ISO Speed Rating 6400 Lens Aperture f/4.0 Exposure Bias 0 EV Metering Mode Center Weighted Average Flash No Flash, Compulsory Focal Length 22.00 mm Color Space Information Uncalibrated Image Width 2376 Image Height 2808 Rendering Normal Exposure Mode Auto White Balance Manual Scene Capture Type Standard
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>>2943884
Isnt that the wrong end to see the mount?
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>>2943891
nope.
that is the mount.
its a jupiter 8
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>>2943884
That's not a mount.
It's either a special-purpose J-8 that was broken off some kind of optical instrument, or a homebrew modification that went horribly wrong.
What I suggest you do
- look up the mechanics of a "proper" J-8 online
- start dismantling it at the rear end and see where unknown bullshit ends and native J-8 parts begin
- if you find M39 thread or Kiev-Contax mount under there, you have won
- if not, see if you can macgyver something or buy the missing parts
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>>2943975
true. i took it apart yesterday. its a kiev/contax mount.
i cant find an eos m adapter tho.
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>>2944107
That version of J-8 uses the internal bayonet of the Contax mount, so it requires the focusing helicoid to be built into the camera body/adapter. Even if you had a Sony or m43 camera, adapters with these helicoids cost probably 10x as much as you paid for the lens, so you're better off selling it and buying another one.
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File: contax-rf-kiev-rf-to-sony-nex-adapter-with-focusing-part-helios-103-f1-8-53mm-85fc86a7f55eb0b00e3ad4a57f700291.jpg (15KB, 400x300px) Image search:
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>>2943884
>>2944107
Now that I look at it more closely, it seems like what you have are the remains of a Kiev bayonet mount ripped from the camera body along with the lens.
It doesn't look like you have enough parts to try assembling a homebrew adapter with a focusing mechanism from that, though.
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>>2944115
i just ordered a focusing eos m to m42 adapter for a different lens.
maybe i can find a contax/kiev to m42 adapter?
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>>2944118
A *focusing* M42 adapter? All M42 lenses have their own focusing mechanisms, so all it does is add macro capability.
Direct Contax to M42 adapters do not exist as they'd need to have negative thickness, but you might try to use your M42 adapter as a shell to put the lens optics in.
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>>2944133
this is for a ef-m mount. not an ef.
seems like plenty of room with the right adapter
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>>2944162
EF-M to Contax is possible, M42 to Contax is not.
Google "flange focal distance".
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>>2944179
depend on the depth of the ef-m to m42 adapter
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>>2944294
>depend on the depth of the ef-m to m42 adapter
There is no "depends", the depth of such an adapter must be exactly 27.46 mm or the focusing range of the lens is fucked.
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>>2944313
you just confirmed what i said.
is english not your first language?
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