Luminous Landscape Forum

Equipment & Techniques => Cameras, Lenses and Shooting gear => Topic started by: Paul2660 on June 16, 2016, 06:15:17 pm

Title: Question for Pentax shooters on Teleconverters
Post by: Paul2660 on June 16, 2016, 06:15:17 pm

Pentax makes a 70-200 and the 150-450 both full frame lenses.

Does anyone know if there is a teleconverter 1.4x that will work on either of these lenses? 

I found a 1.4x from Pentax.

http://www.bhphotovideo.com/c/product/1029081-REG/ricoh_37962_1_4x_hd_da_af.html

Not sure if this will work on full frame lenses.

Paul C

Title: Re: Question for Pentax shooters on Teleconverters
Post by: Ray Cox on June 16, 2016, 09:50:58 pm

Paul

You may find this thread from Pentax Forums to be your answer.

Ray

http://www.pentaxforums.com/forums/10-pentax-slr-lens-discussion/323664-pentax-70-200-f2-8-tc.html

Title: Re: Question for Pentax shooters on Teleconverters
Post by: Paul2660 on June 16, 2016, 10:13:44 pm

Ray,

Thanks, looks like for now, a no go for full frame, maybe in the future Pentax will come out with a solution. 

It's too bad that Sigma chose not to make their 150-600 in the K mount in either the contemporary model or the sport.

Paul C

Title: Re: Question for Pentax shooters on Teleconverters
Post by: mjrichardson on June 17, 2016, 02:15:02 am

Paul

There's another thread on teleconverters on the K1 with some examples here..

http://www.pentaxforums.com/forums/190-pentax-k-1/321600-ff-teleconverter-k-1-a.html

Would be interested to hear your thoughts on the K1, there is a body waiting for me at my dealer, just trying to decide if it's worth it, the lenses bother me.

Mat

Title: Re: Question for Pentax shooters on Teleconverters
Post by: skierd on June 17, 2016, 03:20:08 am

This is a good thread for the K-1 and long lenses/TC's.

http://www.pentaxforums.com/forums/122-lens-clubs/55946-300mm-plus-lens-club-discuss-your-long-lenses-1479.html

Might check here too:
http://k-1-lab.com/en/

95% sure the HD DA 1.4x TC is full frame compatible, or close enough for govt work.  Worst case, you turn off crop mode and deal with the vignettes in LR or PS or with a crop.