Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
08-01-2008, 12:26 PM   #1
New Member




Join Date: Jul 2008
Location: France
Posts: 22
sigma 17-70mm

It is said that that lens is not suitable for film SLRs, only digital. Would someone clarify this for me. If it's a no-no for film, then what would be a comparable lens, both in terms of range and quality?
Thanks

08-01-2008, 12:31 PM   #2
Veteran Member
deejjjaaaa's Avatar

Join Date: May 2007
Location: steel city / rust belt
Posts: 2,046
QuoteOriginally posted by lazyeye Quote
It is said that that lens is not suitable for film SLRs, only digital. Would someone clarify this for me. If it's a no-no for film, then what would be a comparable lens, both in terms of range and quality?
Thanks
it can't cover the whole 24x36mm area by design... Sigma used to have 24-135/2.8-4.5 - which might be OK for FF film sharpwise... also more or less close will be 17-35mm F2.8-4 DG & 28-70mm F2.8-4 DG
08-05-2008, 02:33 PM   #3
Veteran Member
AndrewG NY's Avatar

Join Date: Dec 2006
Location: Chappaqua, NY
Photos: Gallery
Posts: 681
You should clarify whether you're looking for lens kit to do both film and digital, or whether you are just looking for good film glass. If film, which body? You must also consider whether or not the lens includes an aperture ring. Many Pentax bodies required one for full functionality, and the more recent lenses often omit it.

If you're asking for the equivalent coverage, 28-105 is probably the closest thing. I would recommend the Pentax FA 28-105 f/3.2-4.5 for this range on film. There are many 28-105 available from Pentax and other lensmakers, but this one's my choice. It's also about 1/2 the price of the Sigma. Another very good choice is Pentax FA 24-90 f/3.5-4.5 but it's a little wider, a little shorter, and costs twice as much as the 28-105.

If your question is a lens that can cover the focal length range 17-70 on digital AND film, like deejjjaaaa suggested, there aren't any single lenses like that available--the very widest standard zooms generally stopped at 24mm, and 28 was much more common (in days of yore, 35mm was the starting point). You would need a both a separate standard zoom and an ultrawide zoom .

Last edited by AndrewG NY; 08-05-2008 at 03:07 PM.
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!
film, k-mount, lens, pentax lens, slr lens
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Sigma 24-70mm F2.8 IF EX DG HSM - VS - Sigma 24-70mm F2.8 EX DG Macro Braciola Pentax SLR Lens Discussion 2 10-15-2010 04:54 AM
Pentax 17-70mm f/4 or Sigma 18-50mm f/2.8 or sigma 17-70mm f/2.8-4? shang Pentax SLR Lens Discussion 8 05-24-2010 05:30 AM
Sigma 24-70mm, Sigma 28-70mm, or Tamron 28-75mm? gkreth Pentax SLR Lens Discussion 7 05-23-2010 01:01 PM



All times are GMT -7. The time now is 10:43 AM. | 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