Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
08-11-2007, 02:01 AM   #1
Inactive Account




Join Date: Aug 2007
Location: London, UK
Posts: 17
Is it 50mm or 75mm on digital?

Hi there.

I have a problem.
For some it may sound silly but I just don't know what to do.

While using my old lens (SMC Pentax-A 50mm 1:1.7) on K10D camera is asking me to set focal lenght of the lens.
Should I set it on 50mm as it is, or 75mm which is equivalent of it on digital?

Looking forward to any help.
Thanks a lot.
jpmb76

Flickr: Photos from jpmb76
Flickr: Just PENTAX!


Last edited by jambowl; 08-15-2007 at 01:36 PM.
08-11-2007, 02:12 AM   #2
Veteran Member
jthommo's Avatar

Join Date: Sep 2006
Location: Canberra, Australia
Photos: Gallery
Posts: 339
You should enter 50mm
08-11-2007, 10:12 AM   #3
Loyal Site Supporter
Loyal Site Supporter




Join Date: Sep 2006
Location: Bronx NY
Photos: Gallery | Albums
Posts: 5,613
Thommo is correct. Enter ANY lens (old/new inbetween) as what it is, not it's FOV with the 1.5 crop. The SR works directly on the real distance, not on the perceived crop distance.

NaCl(and it's not a silly question)H2O
08-12-2007, 02:50 AM   #4
Inactive Account




Join Date: Aug 2007
Location: London, UK
Posts: 17
Original Poster
Thanks.

Thank you guys.

Thommo I have looked at some of your pictures on flickr.
Great, the full moon is already on my desktop

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!
50mm, 75mm, flickr, 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
Pentax FA* 28-70mm/2.8 VS Tamron 28-75mm/2.8 at 50mm pcarfan Pentax SLR Lens Discussion 27 05-30-2010 06:14 AM
Can't decide : Tamron 28-75mm or 17-50mm kp0c Pentax SLR Lens Discussion 14 03-26-2010 06:06 AM
Tamron 17-50mm vs 28-75mm taurus9 Pentax SLR Lens Discussion 5 02-01-2010 01:27 AM
Wanted - Acquired: Tamron 17-50mm f/2.8 or 28-75mm f/2.8 LeDave Sold Items 0 12-12-2009 04:49 PM
The Tamron 17-50mm and 28-75mm questions LeDave Pentax SLR Lens Discussion 15 12-07-2009 01:02 AM



All times are GMT -7. The time now is 08:52 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