Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
01-12-2019, 02:26 PM   #1
New Member




Join Date: Jan 2019
Posts: 10
Pentax MX and Prinzflex Auto 3X Converter

Hello,
I've bought a Pentax MX that came with 3 lenses...and this Prinzflex converter. I really cannot understand how to use with my lenses because i have a the PK/M42 (i suppose) adapter ring to connect to the camera side(PK/M42 female) , but i should have another M42/PK (M42 male/PK) mount to connect it to my lenses...i said 'i should' because i can't understand if i'm misunderstanding something!

The lenses I have are:
Hanimex Auto Zoom 75-300mm 1:5,6
SMC Pentax 135mm 1:3,5
SMC Pentax 28mm 1:2,8

Any help?

Thanks,
P.

01-12-2019, 02:48 PM - 1 Like   #2
Site Supporter
Site Supporter
sergysergy's Avatar

Join Date: Jan 2011
Posts: 2,908
It is only possible to adapt M42 to K mount, not the other way round. If you have a K mount camera, a K mount lens and an M42 converter you cannot use it.
01-12-2019, 08:24 PM - 1 Like   #3
Pentaxian




Join Date: May 2014
Location: Pugetopolis, WA
Photos: Gallery
Posts: 391
This converter will only work if you find some screw mount (M42) lenses.
A screw mount 3x converter is likely not very high quality, Likely not worth the investment in more glass?
It should be faster glass too, you'll lose 3-stops of light with it,
01-13-2019, 03:58 AM - 1 Like   #4
Loyal Site Supporter
Loyal Site Supporter
pschlute's Avatar

Join Date: Mar 2007
Location: Surrey, UK
Photos: Gallery
Posts: 2,481
Take the M42 converter off your camera and your lenses will then just bayonet in place.

01-13-2019, 07:31 AM   #5
New Member




Join Date: Jan 2019
Posts: 10
Original Poster
QuoteOriginally posted by K-Three Quote
This converter will only work if you find some screw mount (M42) lenses.
A screw mount 3x converter is likely not very high quality, Likely not worth the investment in more glass?
It should be faster glass too, you'll lose 3-stops of light with it,
Please read here: Using a 3x Tele Converter

---------- Post added 01-13-19 at 07:35 AM ----------

Thanks guys for your replies.

This is a kind of mystery because i cannot understand why there was that Prinzflex converter in the same camera bag. I've found a PK/EOS adapter ring too..probably they were part of a bigger setup.

P.
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!
auto, converter, glass, lenses, mx, mx and prinzflex, pentax, pentax mx, prinzflex, prinzflex auto 3x, screw, smc
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Asanuma Auto Tele converter 3X for Pentax K marquis1955 Pentax SLR Lens Discussion 10 07-28-2016 05:30 PM
Prinzflex f2.8 135mm Lens. Congupnasaint Pentax SLR Lens Discussion 10 08-17-2014 04:49 AM
prinzflex auto 2x converter gixer1974 Troubleshooting and Beginner Help 2 08-30-2012 06:32 PM
For Sale - Sold: Vivitar 200mm/f3.5 P/K mount, 3X converter, Pentax me cambridge Sold Items 6 11-16-2009 12:19 AM
info on Prinzflex 28/2.8 ? d.bradley Pentax SLR Lens Discussion 2 06-24-2007 07:19 PM



All times are GMT -7. The time now is 03:31 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