Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
02-12-2012, 02:12 AM   #1
Senior Member
Pontax's Avatar

Join Date: Oct 2011
Location: Bornholm
Photos: Gallery | Albums
Posts: 160
No more push-pull zooms, why?

I want to order a DA 55-300 Tele zoom and start shooting wildlife and nature, I live on an island with many raptors and the bisons will come in april.

But a prime 300mm has limited use for me so I go for a zoom. And that made me think of my first zoom back in my Spotmatic days, a Vivitar 75-205.
This was a push-pull zoom a natural action for me. Why was this abandoned, out of fashion, to expensive to produce, optically a bad solution?

Well, I am looking so much forward to go out with the new tele-zoom.

02-12-2012, 02:33 AM   #2
Administrator
Site Webmaster
Adam's Avatar

Join Date: Sep 2006
Location: Arizona
Photos: Gallery | Albums
Posts: 40,957
Because then AF stuck its nose in In any case, the 55-300 has quick shift, so that's as good as it gets these days!

Adam
PentaxForums.com Webmaster (Site Usage Guide | Site Help | My Photography)



PentaxForums.com's high server and development costs are user-supported. You can help cover those costs by donating. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

02-12-2012, 02:59 AM   #3
Pentaxian
calsan's Avatar

Join Date: Nov 2008
Location: Perth, Australia
Photos: Gallery
Posts: 1,367
... plus they pump dust into your camera...

DA55-300 is a ripper of a lens and I'm glad I have it. Plus it's fairly small and light. (About the size of a can of soft drink when at 55mm setting.)
Won't let you down when shooting at 300mm and f5.8 either... for example:

Last edited by calsan; 10-20-2013 at 03:23 AM.
02-12-2012, 03:06 AM   #4
Pentaxian




Join Date: Dec 2007
Location: Prague
Photos: Gallery
Posts: 1,198
One, push-pull is still in production, the EF100-400L. But it is plagued with problems caused by this construction...

02-12-2012, 03:28 AM   #5
Senior Member
Pontax's Avatar

Join Date: Oct 2011
Location: Bornholm
Photos: Gallery | Albums
Posts: 160
Original Poster
QuoteOriginally posted by Adam Quote
Because then AF stuck its nose in
Aha!

QuoteOriginally posted by calsan Quote
Won't let you down when shooting at 300mm and f5.8 either... for example:
Nice bird.

Thanks
02-12-2012, 05:53 AM   #6
Veteran Member
Docrwm's Avatar

Join Date: Sep 2010
Location: Somewhere in the Southern US
Photos: Gallery | Albums
Posts: 11,275
I've got the K45-125 and its a stellar performer with no more dust after using it than my other zoom based on sensor alerts and visual inspection.
02-12-2012, 06:42 AM   #7
New Member




Join Date: Oct 2011
Posts: 14
As Docrwm indirectly mentioned, some push-pull zooms are real air-pumps that swirl up any dirt and dust in the lens and camera, so you do have to be very careful about dust getting onto the sensor. If you rely on shake reduction, the old zooms don't communicate with the camera, so you have to enter whatever focal length you're using manually for accurate shake reduction.
02-12-2012, 06:55 AM   #8
Pentaxian
reeftool's Avatar

Join Date: Dec 2007
Location: Upstate New York
Photos: Gallery | Albums
Posts: 8,009
It's possible to make because since I dropped my Sigma 70-300 over a year ago, it is now a push/pull zoom rather than rotating and the AF still works. Carrying it around is a hassle now as it wants to fully extend while hanging from the strap. I prefer a zoom that rotates to zoom.

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!
k-mount, pentax lens, push-pull, slr lens
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Vivitar push pull, how tight should it be? ripit Pentax SLR Lens Discussion 14 05-29-2011 08:20 PM
28mm Push/Pull-type zoom pyra_ohms Pentax SLR Lens Discussion 7 04-24-2010 08:38 AM
Are old push/pull zoom lenses better for video? jake14mw Video and Pentax HDSLRs 3 01-16-2010 10:38 AM
push pull zooms? LMRacing Pentax SLR Lens Discussion 17 08-16-2009 10:42 PM
Does CVS know how to push and pull process? OniFactor Pentax Film SLR Discussion 10 06-23-2008 06:29 AM



All times are GMT -7. The time now is 08:05 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