Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
04-17-2014, 08:59 AM   #16
Pentaxian
Pål Jensen's Avatar

Join Date: Dec 2007
Location: Norway
Photos: Albums
Posts: 3,064
I wonder if the coming wide angle zoom will be a DA lens; ie for the current cropped 645 sensors. That could make it a lot cheaper...

04-17-2014, 09:38 AM   #17
Senior Member




Join Date: Nov 2010
Location: Calgary, Alberta
Posts: 265
Yes, I'm curious about that as well. If Pentax continues to produce new DFA designs, that may signal they're keeping their options open for a full frame 645 body. If they start producing mainly DA designs then we're probably looking at the current 44 x 33 mm (ish) sensor format for some time...
04-19-2014, 08:56 PM   #18
Forum Member




Join Date: Apr 2014
Location: Maine
Posts: 51
QuoteOriginally posted by Royce Howland Quote
It's a bit difficult to judge the price or value of the Pentax DA 25mm because virtually nobody has made a lens wider than 30 - 35mm for any medium format system, with the modern specs and performance of the Pentax lens.
Hasselblad has a 24mm and a 28mm for their H series cameras, Leica has a 25mm for the S, Mamiya a 28mm for their Phase cameras, Rodenstock has 23mm and 28mm lenses for tech cameras, and Schneider has 24mm and 28mm lenses. All modern lenses, all a little or a lot more than the Pentax, except for the Schneider lenses. In the MFD world, that would be virtually everybody.

---------- Post added 04-19-14 at 11:58 PM ----------

The new wide-angle zoom appears to be a 33-55mm lens. I think it will be in line with the DFA pricing rather than the FA pricing.
04-20-2014, 04:07 AM   #19
Pentaxian
Pål Jensen's Avatar

Join Date: Dec 2007
Location: Norway
Photos: Albums
Posts: 3,064
QuoteOriginally posted by Hakusan Quote
[/COLOR]The new wide-angle zoom appears to be a 33-55mm lens. I think it will be in line with the DFA pricing rather than the FA pricing.
What makes you think it is a 33-55 lens? There already is one. Whats needed is a wider zoom due to the crop factor; perhaps a 28-45?

04-20-2014, 05:53 AM   #20
Senior Member




Join Date: Sep 2009
Location: Melbourne, Australia
Photos: Albums
Posts: 212
I'm wondering about the second lens since that looks to directly duplicate the 45-85 zoom. I can't imagine that a refresh would be marked as a new lens. All I can think of is adding in-lens SR or making it faster. Either option would be expensive.
04-20-2014, 08:55 AM   #21
Forum Member




Join Date: Apr 2014
Location: Maine
Posts: 51
QuoteOriginally posted by Pål Jensen Quote
What makes you think it is a 33-55 lens? There already is one. Whats needed is a wider zoom due to the crop factor; perhaps a 28-45?
My bad. I was looking through a Japanese web site on the new 645Z and there was a reference to a wide-angle zoom, but it was the old FA, not DFA. Hopefully a 28-45mm. That would be nice.
04-21-2014, 08:34 AM   #22
Senior Member




Join Date: Nov 2010
Location: Calgary, Alberta
Posts: 265
Bad research by me. Looks like there are more MF ultrawides than I was aware from previous looking around. Nevertheless the conclusion remains: the Pentax 25mm is reasonably spec'ed and priced for what it is.
04-21-2014, 01:17 PM   #23
Inactive Account




Join Date: Jan 2013
Posts: 17
Does Pentax have a leaf shutter lens in the 150mm (ish) range? I'm doing a little poking around, and I don't see anything.

I hope there is such a thing. That would make the 645z very attractive to me. As it is, with a flash sync speed of only 1/125s with the focal plane shutter, its a no go.

04-21-2014, 04:17 PM   #24
Site Supporter
gofour3's Avatar

Join Date: Oct 2008
Location: Vancouver, Canada
Posts: 5,121
QuoteOriginally posted by Omaha Quote
Does Pentax have a leaf shutter lens in the 150mm (ish) range? I'm doing a little poking around, and I don't see anything.

I hope there is such a thing. That would make the 645z very attractive to me. As it is, with a flash sync speed of only 1/125s with the focal plane shutter, its a no go.
Yep:

SMC Pentax 645 LS 135mm F4 Reviews - 645 Telephoto Primes - Pentax Lens Reviews & Lens Database

Phil.
04-21-2014, 04:19 PM   #25
Inactive Account




Join Date: Jan 2013
Posts: 17
But nothing with AF?
04-21-2014, 04:30 PM   #26
Site Supporter
gofour3's Avatar

Join Date: Oct 2008
Location: Vancouver, Canada
Posts: 5,121
All the Pentax 645 and 6x7 leaf shutter lenses are manual focus.
Phil.
04-21-2014, 05:02 PM   #27
Inactive Account




Join Date: Jan 2013
Posts: 17
There's the problem right there. To get me to make the jump to MF digital (I shoot film now...I use Mamiya RB67 system) would require modern lenses with electronic leaf shutters syncing to 1/1600 or so. If I'm going to be stuck with mechanical shutters and manual focus....well, I already have that.
04-21-2014, 05:34 PM   #28
Site Supporter




Join Date: Feb 2008
Photos: Gallery | Albums
Posts: 413
QuoteOriginally posted by Pål Jensen Quote
I wonder if the coming wide angle zoom will be a DA lens; ie for the current cropped 645 sensors. That could make it a lot cheaper...
I would like to think you're correct, but the DA 25mm is sold at the same price of the formerly offered D FA in the US.
05-16-2014, 05:18 AM   #29
Site Supporter




Join Date: Nov 2011
Location: pontiac mi.
Posts: 339
QuoteOriginally posted by uintaangler Quote
Hope this isn't a dumb question, but here goes…..
Why does the 25mm Pentax SMC 645 lens cost over $4,000?
Even when compared to Pentax's other new lenses for the 645D or 645Z that is significantly higher
Is it particularly difficult to produce UWA lenses for Medium Format cameras?
Is this lens that good?
Thanks
the real question is whether the smc 645 is scaled down to match the smaller 645d sensor. otherwise it's not that much of a wide angle lens.
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!
28mm, camera, cameras, lens, lenses, medium format, pentax, schneider
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Lens selection for a weekend getaway (Batam) Yasuo Pentax SLR Lens Discussion 11 11-09-2012 10:03 AM
Lens selection for a noobie MCsquared Pentax SLR Lens Discussion 29 07-05-2010 12:49 AM
Smaller filter for a bigger lens. 52-49mm? TKH Pentax SLR Lens Discussion 5 02-24-2010 04:06 PM
The best news of PMA for lightroom k20d users! vitalsax Digital Processing, Software, and Printing 26 03-07-2009 08:06 AM
Great news, bad news, great news! Marc Langille Photographic Technique 49 03-01-2008 08:35 AM



All times are GMT -7. The time now is 06:10 PM. | See also: NikonForums.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