Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
01-15-2013, 11:38 AM   #1
New Member




Join Date: Aug 2012
Posts: 7
New and need help choosing a zoom lens

I'm a portrait and wedding photographer who is switching from Canon to Pentax. I have a K5-ii. I need a zoom lens somewhere near the range of a 28-200 F2.8. I know I can't get a Pentax brand lens like this and I can't afford more than $1000 max. so what options are there for what I need?

01-15-2013, 11:40 AM   #2
Administrator
Site Webmaster
Adam's Avatar

Join Date: Sep 2006
Location: Arizona
Photos: Gallery | Albums
Posts: 40,986
I'd recommend the Tamron 70-200mm:
Tamron 70-200mm F2.8 Di LD Macro Lens Reviews - Tamron Lenses - Pentax Lens Review Database

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:

01-15-2013, 11:48 AM   #3
Pentaxian




Join Date: Jan 2012
Location: Slovenia
Posts: 2,141
I think you have a typo there. A 28-200 constant 2.8 (or even 2.8-x) lens is possibly impossible or at least highly impractical. You can get a 16-50 and 50-135 constant 2.8's to get a 24-75-200 two_lens kit.
01-15-2013, 11:53 AM   #4
New Member




Join Date: Aug 2012
Posts: 7
Original Poster
QuoteOriginally posted by Giklab Quote
I think you have a typo there. A 28-200 constant 2.8 (or even 2.8-x) lens is possibly impossible or at least highly impractical. You can get a 16-50 and 50-135 constant 2.8's to get a 24-75-200 two_lens kit.
Canon EF 70-200mm f/2.8L IS USM Telephoto Zoom Lens for Canon SLR Cameras
by Canon
4.8 out of 5 stars See all reviews (248 customer reviews) | Like (43)
Price: $2,099.00

Well that's what I have and here is one for sale. Why is it impractical? and why do you say constant? It goes down to F2.8 but you can adjust the aperture for correct exposure just as you would on any other lens.

01-15-2013, 12:19 PM   #5
Veteran Member
Anvh's Avatar

Join Date: Sep 2011
Posts: 4,616
constant f/2.8 means that the wide open value of f/2.8 is constant throughout the zoom range.
Cheaper zoom lens have vairable values.

As for 28-200 and 70-200, the differnce between 28 and 70 is very large... there is no such lens with f/2.8 that covers such a range.
Canon and others cover that range with 2 lenses.

Pentax offers 16-50 and 50-135 that has the same AOV as 24-70 and 70-200 on FF camera.
01-15-2013, 12:54 PM   #6
Pentaxian
wildman's Avatar

Join Date: Jun 2008
Location: Flyover America
Posts: 4,314
QuoteOriginally posted by drrae Quote
why is it impractical?
$2,099.00
01-15-2013, 01:37 PM   #7
Pentaxian




Join Date: Jan 2012
Location: Slovenia
Posts: 2,141
Did you shoot on crop or full frame cameras? If crop then get a 70-200 2.8 from Tamron or sigma. If FF then get the DA* 50-135.
Also, lol @wildman
01-15-2013, 01:38 PM   #8
Veteran Member




Join Date: Aug 2011
Location: Niagara
Photos: Gallery | Albums
Posts: 791
check the marketplace right now, there is a Sigma 70-200 f2.8 for sale as well as a Sigma 17-50 f2.8. That would make a great wedding 2 lens kit

01-15-2013, 02:21 PM   #9
Veteran Member




Join Date: Apr 2011
Location: Chicago Area
Photos: Gallery
Posts: 366
QuoteOriginally posted by wildman Quote
$2,099.00
I think you missed the OP - he said 28 as in TWENTYEIGHT to 200 F2.8. The 70-200mm F2.8 lenses are already big - can't imagine what a 28-200mm F2.8 would look like (or cost), and currently does not exist - even in the Canon lineup!
01-15-2013, 02:24 PM   #10
Veteran Member




Join Date: Apr 2011
Location: Chicago Area
Photos: Gallery
Posts: 366
The Tamron Di 70-200mm F2.8 would take care of the upper range at a much lower price than the Canon - about $600 used - heck - I'll sell you mine ;-) The 50-135mm would be smaller and might work better, though you may pay a little more than $600 for a used one. Add one of the 17-50mm F2.8 lenses by Sigma or Tamron, and you are covered
01-15-2013, 04:20 PM   #11
Pentaxian




Join Date: Sep 2009
Location: Southern California
Photos: Gallery | Albums
Posts: 3,181
So, were you using a FF canon? If so, I think you'd be happy with a used DA*50-135. This Tokina-made lens is one of the better zooms available from anyone.
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, lens, pentax, pentax lens, slr lens
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Need help with choosing a telephoto zoom lens amorificus Troubleshooting and Beginner Help 8 01-26-2012 05:29 PM
need help choosing a lens Jinxed Pentax SLR Lens Discussion 9 12-29-2011 04:20 AM
Need help choosing a lens... Saxplayer1004 Pentax SLR Lens Discussion 6 09-18-2010 07:27 PM
Need Help choosing new lens guitarjoe2 Pentax SLR Lens Discussion 5 06-10-2010 05:55 AM
Early LBA Victim - need help choosing a zoom :) USCdeacon Pentax SLR Lens Discussion 13 03-24-2007 04:12 AM



All times are GMT -7. The time now is 03:01 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