A Site for Photographers by Photographers

Community > Forums > Medium Format > Pentax 645 > Pentax 645 lens guide...

Featured Equipment Deals

2015 Mother's Day Gift Guide Read More

2015 Mother's Day Gift Guide

If your mom is always there for you, with camera in hand, then this is the gift guide for her! This list of top photo gear picks will help you make mom's day.

Latest Equipment Articles

Tamron's redefined SP lenses - a first Look at the SP 35/1.8 and SP 45/1.8 Read More

Tamron's redefined SP lenses - a first Look at the SP 35/1.8 and SP 45/1.8

Earlier today (09/02/2015) Tamron released details of the first two lenses in their newly redefined "SP" line (see http://www.tamron-usa.com/news/35mm/35_F012_45_F013_2015.php). These lenses are...

Latest Learning Articles

The September Monthly Project Read More

The September Monthly Project

This month's project with guest instructor Jackie DiBenedetto focuses on challenges - and joys! - of photographing kids. Add your best photo to the thread and enjoy the conversation!

Pentax 645 lens guide question

Alex J , Oct 17, 2006; 09:14 a.m.

I've just purchased a Pentax 645... first medium format camera for me... with 75mm F2.8 and I'm looking for a site with a guide to Pentax 645 lenses. Something similar to Bjørn Rørslett's Nikon lens pages or Bojidar Dimitrov's Pentax K-Mount Page would be good.

Or don't these sort of pages exist for the Pentax 645?

I've done some searching and learnt a few basic things, like I believe I should be able to use both the Pentax 645 MF lenses and the later AF lenses from the P 645N (in MF mode!) and there is also a Pentax 67 lens adapter, but some things don't seem clear.

For example... this page.

The SMC Pentax-A* 645 300mm f/5.6 ED [IF] is listed as having an Angle of View of 13.5, while the SMC Pentax-FA* 645 300mm f/4 ED [IF] AF is listed as having an Angle of View of 6.6. That can't be right?

The second one doesn't look much like the Pentax 645 300mm f4 MF I've seen offered for sale either... further adding to the confusion. I'm not looking to get a long tele like the 300mm right now, but I'm hoping there might be a better guide to the Pentax 645 lenses than this.



Erwan Louet , Oct 17, 2006; 01:36 p.m.

Try a search on this very forum. Lots of subjective opinions scattered among the threads. Good luck !

D Colucci , Oct 17, 2006; 06:43 p.m.

I have a page on Pentax 67 lenses, but I dont know of any similiar on the 645 lenses. If someone can help, I can publish a 645 page...anyone ?

Lee Shively , Oct 21, 2006; 10:43 a.m.

First of all, congratulations on getting a P645. I'm not aware of any source for the information you're trying to find. I've been using P645 equipment for a while and I just had to dig and search for information. Some information that may or may not be helpful can be found here http://medfmt.8k.com/mf/g645.html#pentax645 and here http://medfmt.8k.com/mf/pentax645.html

Searching the posts on the P645 here on pnet is also pretty good.

Yuri Huta , Apr 05, 2007; 05:36 p.m.

Not a complete list of 645 lenses... but it is something

some of the AF line http://www.pentaxcanada.ca/film/mf/645lenses/645_autofocus.php

only a few of the MF line http://www.pentaxcanada.ca/film/mf/645lenses/645_manualfocus.php

Yuri Huta , Apr 05, 2007; 05:38 p.m.

duh on my part... sorry, I had not recently read the opening post on this.

Sorry for the repetition of websites.

Back to top

Notify me of Responses