Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
03-19-2011, 08:50 AM   #1
New Member




Join Date: Mar 2011
Posts: 3
Lens for Pentax K100D

Hi,

I have a Pentax K100D... that I use with a old vivitar 70-200mm lens I had with my Pentax Me-super... I'm mostly took picture of action sports (auto racing)... however, with the lens, I'm always on manual mode (auto focus don't work with the 70-200mm lens).

I was looking to upgrade for a K-r or K-x, however, I decided instead of keepiong it and to buy a new lens... 55-200 or 300mm...

Someone has any suggestion ? sigma, Pentax, tamron,...

thanks

03-19-2011, 11:06 AM   #2
Inactive Account




Join Date: Aug 2008
Location: Michigan, USA
Photos: Gallery | Albums
Posts: 7,485
I've never tried one but the DA 55-300 is well spoken of around here. Note however, you're still going to be fighting with slow AF on your K100d. The only similar lens I have any experience with is the Tamron Di LD 70-300. For me, it was quite a capable lens but I never did any motorsport shooting with it.

All that said, you might want to look into a K-x or K-r kit that comes with the 55-300 (if that's the platform you prefer).

03-19-2011, 11:12 AM   #3
Veteran Member
paperbag846's Avatar

Join Date: Jul 2010
Photos: Gallery
Posts: 2,396
I would get the 55-300 for sports in good light.
03-20-2011, 06:54 AM   #4
New Member




Join Date: Mar 2011
Posts: 3
Original Poster
On the other hand, I wonder if the difference between a new one and my old Vivitar will be big ? Right now, I'm shooting every time in manual mode...

I'm sure, pictures will improve, even if I keep shooting in manual mode with a new one.

03-20-2011, 09:38 AM   #5
Inactive Account




Join Date: Aug 2008
Location: Michigan, USA
Photos: Gallery | Albums
Posts: 7,485
It depends on which vivitar you have. Some of them are doorstops and some of them are great performers. Even across the same focal lengths, that is, 70-200. Three things an update will buy you are auto focus and modern design (with the coatings and the like) and of course, the extra reach.

03-20-2011, 11:02 PM   #6
Veteran Member
selar's Avatar

Join Date: Jul 2007
Location: Sydney, Australia
Photos: Gallery | Albums
Posts: 2,035
If its the Vivitar Series1 70-200mm that you have, thats a very highly regarded lens. With auto racing you could use trap focus quite effectively as the cars follow preset routes. If you are doing good with manual focus, I'd just stick with what you have and refine technique. I doubt that the K100D's autofocus will be fast enough for action photography. Most AF lenses wont have the fine manual focusing ability of your 70-100. Some here have used split prism focusing screens to improve the manual focusing ability, you might try the same.
03-22-2011, 05:27 PM   #7
New Member




Join Date: Mar 2011
Posts: 3
Original Poster
It is a Vivitar 1A Skylight 052mm (PK-A/R). in fact it is a 100-300mm... 1:5.6 - 6.7

Macro focusing zoom.

I mismatched with another one.
03-22-2011, 07:11 PM   #8
Site Supporter
SpecialK's Avatar

Join Date: Dec 2006
Location: So California
Photos: Gallery
Posts: 14,847
Every thread about the 50-xxx budget zooms (Sigma, Tamron, Pentax) ends with - "get the Pentax 55-300". Really. It's the best bang/buck for $350 or under. Next step up is twice that.

03-22-2011, 10:36 PM   #9
Veteran Member
sterretje's Avatar

Join Date: Dec 2008
Location: Roodepoort, South Africa
Photos: Gallery | Albums
Posts: 3,534
QuoteOriginally posted by AlanF Quote
It is a Vivitar 1A Skylight 052mm (PK-A/R).
Quite sure that that's a filter and not the lens

QuoteOriginally posted by AlanF Quote
in fact it is a 100-300mm... 1:5.6 - 6.7
this one?
03-24-2011, 12:15 AM   #10
Inactive Account




Join Date: Nov 2010
Location: Oregon
Posts: 29
I have the 50-200 and the 55-300, both are great lenses, I really did not notice a great difference in quality. I shot some photographs with the K100D using the 50-200 and DA 16-45 which is a fantastic lens for one not being a limited or star. You can see images with all these lenses at the PPG Some taken with a K20D and K5, but most taken with a K100D. I destroyed the 50-200 on the Grand Canyon rafting trip which is why I bout the 55-300 just to get a bit more range. Here is a link to the PPG. PENTAX Photo Gallery
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!
70-200mm, auto, k-mount, lens, lens for pentax, pentax, pentax lens, slr lens
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
For Sale - Sold: k100d,pentax 18-55 lens, quantary 70-300mm lens..carying bag and more suzook Sold Items 4 06-23-2010 09:03 AM
For Sale - Sold: Pentax K100D Super with upgraded Pentax DA 18-55mm f/3.5-5.6 AL II lens + SMC ravinj Sold Items 6 05-27-2010 06:50 PM
New kit lens for Pentax K100D Von Ryan Pentax SLR Lens Discussion 9 09-08-2008 11:25 PM
lens for pentax K100D Sigma 50mm 2.8 ex macro fevbusch Pentax DSLR Discussion 7 02-04-2007 11:32 AM



All times are GMT -7. The time now is 08:03 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