Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
03-19-2019, 05:44 AM   #1
Site Supporter
Site Supporter




Join Date: Jul 2013
Location: Melbourne
Photos: Albums
Posts: 259
Is this the rarest K-Mount lens? (Sigma 800mm f5.6)

As I am waiting for my DA560 to get back from a trip to Japan, GAS reared it's ugly head and led me to this, a seemingly incredibly rare lens in the form of the 'Sigma EX 800mm f5.6 AF', in K-mount no less. From the looks of things, it has a genuine Pentax style aperture ring, but unfortunately there are no pictures of the lens mount on the eBay listing. Any thoughts?

Sigma 800mm f5.6 APO EX* Pentax Fit 2 converters 2x 1.4x and Aluminum case | eBay

03-19-2019, 06:18 AM   #2
Site Supporter
Site Supporter
Docrwm's Avatar

Join Date: Sep 2010
Location: Somewhere in the Southern US
Photos: Gallery | Albums
Posts: 12,231
Given that it has a PK to M43 adapter mounted on it in a photo I would hazard to believe that it has a PK mount.

But that may not matter as the seller says:

Collection in person only
or on route to London hand delivery
If any local people interested in this lens there welcome
to contact me and do some test shots with it
03-19-2019, 06:35 AM   #3
Junior Member
Pedrodelta's Avatar

Join Date: Aug 2012
Location: Blighty
Posts: 32
QuoteOriginally posted by Docrwm Quote
Given that it has a PK to M43 adapter mounted on it in a photo I would hazard to believe that it has a PK mount.

But that may not matter as the seller says:

Collection in person only
or on route to London hand delivery
If any local people interested in this lens there welcome
to contact me and do some test shots with it
Looks reminiscent of a German Stick Grenade.

Could be useful for blowing images up I suppose!!!
03-19-2019, 07:35 AM   #4
Site Supporter
Site Supporter




Join Date: Nov 2012
Location: North Wales
Photos: Gallery | Albums
Posts: 1,931
The first mention of a 800mm apo is from 1991 on the sigma history page.This lens is from 1999 apparently, and is only listed as Nikon, Canon, Sigma mounts. Definitely requires mount clarification. Of itself I wouldn't pay anywhere near asking price for well used lens like this, BUT if it is pentax HSM (history spec page does say HSM) then rarity changes that.

Sigma 800mm F5.6 APO EX Launched June 1999 - Sigma Imaging (UK) Ltd

I can suggest the rarest is the 1000mm f8 from 1991 see this scan.


Last edited by marcusBMG; 03-19-2019 at 07:49 AM.
03-19-2019, 01:43 PM   #5
Pentaxian
Wasp's Avatar

Join Date: Mar 2017
Location: Pretoria
Photos: Gallery
Posts: 841
From the size of the thing, I can see why the seller insists on collection in person.
03-19-2019, 10:42 PM   #6
Pentaxian




Join Date: Apr 2017
Location: New Mexico
Posts: 698
QuoteOriginally posted by Docrwm Quote
Given that it has a PK to M43 adapter mounted on it in a photo I would hazard to believe that it has a PK mount.
Also the aperture ring has an "A". Nikon doesn't have that, I don't know about Sigma SA or Canon EF.
03-19-2019, 11:32 PM - 2 Likes   #7
Site Supporter
Site Supporter
ChrisPlatt's Avatar

Join Date: Nov 2007
Location: Rockaway Beach NYC
Posts: 5,709
I'm pretty sure the SMC Pentax-M 35/1.4 lens is the rarest.

Chris
03-23-2019, 09:20 AM   #8
Pentaxian
Wasp's Avatar

Join Date: Mar 2017
Location: Pretoria
Photos: Gallery
Posts: 841
QuoteOriginally posted by ChrisPlatt Quote
I'm pretty sure the SMC Pentax-M 35/1.4 lens is the rarest.

Chris
So rare that it has only been seen in pictures released by Pentax?

Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
ebay, f5.6, k-mount, lens, pentax, pentax lens, sigma, slr lens
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Rarest 35-70 lens ever? soycory Pentax SLR Lens Discussion 17 12-16-2018 01:57 AM
What are the rarest Pentax lenses? Bui Pentax SLR Lens Discussion 62 03-02-2017 01:35 AM
The Rarest Lens of Them ALL kmurphy220 Pentax SLR Lens Discussion 22 01-28-2016 07:31 PM
Rarest Pentax lens. K-9 Pentax SLR Lens Discussion 37 06-29-2009 01:32 PM
Sigma 800mm f5.6 philipweber Pentax SLR Lens Discussion 7 02-16-2008 08:30 PM



All times are GMT -7. The time now is 03:38 PM. | See also: NikonForums.com, CanonForums.com part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top