Help please - is this lens K-mount?

rblakers · 11-25-2010, 08:10 PM

Hi, I'm trying to identify the mount for the a lens (pictures attached). I *think* it's a k-mount, but I'm really not sure.

Can anyone help me out?

Attached Images

**jatrax** · 11-25-2010, 08:17 PM

It certainly looks like it. Take a look here for a good article on various mounts:

It also looks like it has the big shield on the bottom. Some off brand lenses have these a little too big to work on modern digital cameras although they work fine on film ones.

macTak · 11-25-2010, 08:27 PM

Originally posted by jatrax

It also looks like it has the big shield on the bottom. Some off brand lenses have these a little too big to work on modern digital cameras although they work fine on film ones.

Agreed--it would need to be filed down for use on a Pentax DSLR probably. It also looks to me like the the aperture lever is somewhat bent; I can't tell if it would be a problem or not.

rblakers · 11-25-2010, 08:37 PM

Right, thanks for that.

I guess you'd need to pull the mount apart in order to file it down, has anyone had any success in doing that?

Steinback · 11-25-2010, 09:32 PM

That looks like a Vivitar Series 1 70-210mm f/3.5 (Version 1)? I believe that there are 3 screws around the circumference of the mount between the 3 K mount fins that lock into the camera and the flange that sits flush to the camera body. If I'm remembering correctly then loosening those screws should allow you to remove the aperture shield so that it can be cut down safely.

I agree that the aperture lever is bent and will almost certainly have to be straightened to work correctly. Be careful with cleaning the rear lens element; it seems to be very dirty.

11-25-2010, 08:10 PM	#1
rblakers New Member Join Date: Oct 2010 Posts: 8	Help please - is this lens K-mount? Hi, I'm trying to identify the mount for the a lens (pictures attached). I think it's a k-mount, but I'm really not sure. Can anyone help me out? Attached Images

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
K-x lens mount with old k-mount lenses	sipper	Troubleshooting and Beginner Help	9	03-18-2010 05:45 PM
Lens mount can use with Pentax mount	espanola	Pentax SLR Lens Discussion	13	02-24-2010 04:48 PM
max lens mount/tripod mount weight	soycory	Pentax DSLR Discussion	1	10-28-2009 12:38 PM
Is it possible to mount an old CCTV C mount lens to my k20d?	WiseOx	Pentax SLR Lens Discussion	2	07-15-2009 03:01 PM
Change vivitar FD mount lens to K mount?	meszidik	Pentax SLR Lens Discussion	4	09-12-2008 09:59 AM

11-25-2010, 08:17 PM	#2
jatrax Site Supporter Join Date: May 2010 Location: Washington Cascades Photos: Gallery \| Albums Posts: 12,991	It certainly looks like it. Take a look here for a good article on various mounts: It also looks like it has the big shield on the bottom. Some off brand lenses have these a little too big to work on modern digital cameras although they work fine on film ones.

11-25-2010, 08:27 PM	#3
macTak Veteran Member Join Date: Apr 2010 Photos: Gallery Posts: 759	Originally posted by jatrax It also looks like it has the big shield on the bottom. Some off brand lenses have these a little too big to work on modern digital cameras although they work fine on film ones. Agreed--it would need to be filed down for use on a Pentax DSLR probably. It also looks to me like the the aperture lever is somewhat bent; I can't tell if it would be a problem or not.

11-25-2010, 08:37 PM	#4
rblakers New Member Join Date: Oct 2010 Posts: 8 Original Poster	Right, thanks for that. I guess you'd need to pull the mount apart in order to file it down, has anyone had any success in doing that?

11-25-2010, 09:32 PM	#5
Steinback Veteran Member Join Date: Jan 2008 Location: GTA, ON, Canada Photos: Gallery \| Albums Posts: 1,673	That looks like a Vivitar Series 1 70-210mm f/3.5 (Version 1)? I believe that there are 3 screws around the circumference of the mount between the 3 K mount fins that lock into the camera and the flange that sits flush to the camera body. If I'm remembering correctly then loosening those screws should allow you to remove the aperture shield so that it can be cut down safely. I agree that the aperture lever is bent and will almost certainly have to be straightened to work correctly. Be careful with cleaning the rear lens element; it seems to be very dirty.

Thread Tools	Search this Thread
	Search this Thread: Advanced Search