Camera lens tripod mount

[cuivenion]

Could anyone recommend a tripod mount ring for this lens please:

http://www.ebay.co.uk/itm/Chinon-MC-f2-8-135mm-Lens-Pentax-K-mount-/291851379498?

Any help much appreciated.

[happy-kat]

You don't say what you are going to use it on and your signature only has a webcam no dslr listed.

Confused to what you are asking help on.

[cuivenion]

Sorry, I'm going to be using a c-mount to pentax k adapter with it so I can attach it to my Altair GPCAM. I want to be able to attach the whole assembly to a dovetail bar so I can mount it on my EQ5.

I thought I could use a tripod mount ring to attach it to a dovetail bar, but I'm not sure which one to get.

 

[happy-kat]

I can't help with that but there are members who use old lenses with imaging cameras so hopefully someone will post.

[Mick J]

Something like these canon mounts,  may or may work with the chinon?  some of the listings have fitting dimensions (more than one size).  Looks a fun lens in your listing.

[Alien 13]

A few people use guidescope rings for camera lenses.

Alan

[cuivenion]

Thanks guys, I've looked at the canon mounts but non seem to be the right size. Guidescope rings seem like a good idea but they all seem very expensive.

[cuivenion]

44 minutes ago, Mick J said:

Something like these canon mounts,  may or may work with the chinon?  some of the listings have fitting dimensions (more than one size).  Looks a fun lens in your listing.

Yeah, it's my first foray into using this type of equipment, I got it to hopefully get better images of the Andromeda Galaxy. The Pleiades is also back and M42 is on the way.

[Mick J]

Had a quick look on Thingiverse, it's this sort of thing that still allows you to focus near/at infinity with any luck,  you may need something to lock focus (hold the focus ring or allow fine adjustment) or something like this Geoptik camera to lens tripod mount in your fitting,  sorry possibly not very helpful.

[cuivenion]

Thanks, but I haven't got the skills or the tools to make that, and I don't think the Geoptik item would work, it's for canon mounts my lens is pentax k.

[RichM63]

Measure the outside diameter of your lens at the point where you want to attach the ring so that it does not foul any moving part. Then either search for lens mounts in this diameter, or think outside the box and look into stuff such as drain pipe wall fixing clamps etc.

Dovetail bar metal is so soft that a drilled hole can be tapped with a hard steel bolt no problem, screw in, screw out, screw in, screw out, until full threading has been achieved.

Rich

[cuivenion]

I think I'm looking in the region of 55mm if that helps, I can't seem to find any tripod rings with that inner diameter, so it looks like bodge time!

[michael8554]

I've just had the same problem with a Hanimex 300mm lens.

I found a Nikon ring on ebay that fits.

Remove Canon from the search, then Nikon and other brands will be found, then look for the size you need.

Michael

[cuivenion]

11 minutes ago, michael8554 said:

I've just had the same problem with a Hanimex 300mm lens.

I found a Nikon ring on ebay that fits.

Remove Canon from the search, then Nikon and other brands will be found, then look for the size you need.

Michael

Can't seem to find any that fit, there's a clamp for the GPCAM do you think this will do the job:

http://www.altairastro.com/Altair-GPCAM-Mounting-Clamp-Tripod-Dovetail-Tube-Rings.html