Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
06-13-2010, 09:46 AM   #1
Site Supporter




Join Date: Feb 2009
Posts: 350
Advice sought for new zoom

Hi:

I am looking to add a longer zoom to my kit. I use a K7 and K20d. My longest zoom is the DA* 50-135.

I am considering the Pentax 60-250 DA* and 2 Sigma lenses: the120-400 and the 100-300.

I like my DA* lenses. All are great optically, but even with the K7 they focus a bit slowly. I am going to use the new zoom mostly for sporting and outdoor events for my children--not birding or indoors, at least not on any regular basis.

I was wondering how people have felt who have moved up from the 50-135 and got the 60-250 in terms of did they get enough reach.

Also, any experience with the 2 Sigma lenses? I have read the other posts on the Sigma zooms and was hoping for anyone who might have been in the position I am in with going from the 50-135 to a longer lens.

I like the f4 feature of the 60-250 and the 100-300 and the weather sealing of the 60-250.

My basic concerns, though, are AF speed and image quality near the long end--that is what is making me consider the 120-400. Is it better at around 300-350 than the Sigma 100-300 is at 300?

If I got the 60-250, I might consider selling my 50-135. Has anyone done that and regretted not having the 50-135 anymore? Again, my concern is the AF speed with the 60-250. As nice as the DA* lenses are they are a bit slow with AF.

I know the Sigma lenses are big. I am a pretty big guy and carry loads of stuff on my shoulder and around my neck, so unless the Sigmas are really not hand held lenses by any stretch, size and weight are not a big concern,

Thanx all for your help--as always!!!

Gregg

06-13-2010, 11:46 AM   #2
Veteran Member
kevinschoenmakers's Avatar

Join Date: Mar 2009
Location: Shanghai
Photos: Gallery
Posts: 1,513
These might be helpful:

Sigma AF 100-300mm f/4 EX HSM APO - Review / Lab Test Report
Sigma AF 100-300mm f/4 APO EX DG HSM (Nikon) - Review / Test Report
Pentax SMC DA* 60-250mm f/4 ED [IF] SDM - Review / Test Report

Couldn't find a review for the 120-400.
06-13-2010, 12:47 PM   #3
Site Supporter




Join Date: Feb 2009
Posts: 350
Original Poster
Thanx so much

Hi:

Thanx for the links. I should have mentioned I had seen them. Photozone notes that results should not be used across brand mounts. Perhpas that is not true?

Do you own the 60-250? I like the idea of having the weather seal and f4, but would miss out a bit on some range compared to the 100-300. Plus, do you know if the AF is the same as the 16-50 and 50-135? Silent and accurate, but kind of slow, even for my children's Little league game.

Gregg
06-13-2010, 01:26 PM   #4
Veteran Member
kevinschoenmakers's Avatar

Join Date: Mar 2009
Location: Shanghai
Photos: Gallery
Posts: 1,513
QuoteOriginally posted by lawjbm Quote
Hi:

Thanx for the links. I should have mentioned I had seen them. Photozone notes that results should not be used across brand mounts. Perhpas that is not true?

Do you own the 60-250? I like the idea of having the weather seal and f4, but would miss out a bit on some range compared to the 100-300. Plus, do you know if the AF is the same as the 16-50 and 50-135? Silent and accurate, but kind of slow, even for my children's Little league game.

Gregg
Indeed the results accross brands cannot be compared, but his write-up should give you an idea of the lens' quality.

I don't own either of these lenses so I can't help you there, unfortunately.

06-13-2010, 06:04 PM   #5
Site Supporter




Join Date: Feb 2009
Posts: 350
Original Poster
Thanx so much again.

My sense is that the choice for me is between the 100-300 Sigma and the Pentax 60-250. I just am concerned about the AF speed of the 60-250 for my children's sports. IQ wise I am very happy with the DA* lenses. Also, getting that extra reach to 300 would be nice.

Gregg
06-13-2010, 06:45 PM   #6
Site Supporter
SpecialK's Avatar

Join Date: Dec 2006
Location: So California
Photos: Gallery
Posts: 14,444
Frankly I doubt the difference in AF speed will make much difference in the Pentax world. I don't think the lenses are the limiting feature.

That said, the Sigma 100-300 is highly regarded, and has the extra reach.
06-13-2010, 09:59 PM   #7
Veteran Member
cbaytan's Avatar

Join Date: Nov 2008
Location: Trabzon/Turkey
Photos: Gallery
Posts: 1,010
QuoteOriginally posted by lawjbm Quote
Hi:

I am looking to add a longer zoom to my kit. I use a K7 and K20d. My longest zoom is the DA* 50-135.

Gregg
Try FA 100-300, about $ 100 will get you sharpest zooms ever with incredible colors, which'll make you proud just because you have chosen Pentax.

'nuff said.

[IMGTALL]http://www.baytan.org/Pentax/2708-Glass.jpg[/IMGTALL]
06-14-2010, 02:18 AM   #8
Site Supporter




Join Date: Feb 2009
Posts: 350
Original Poster
Thanx so much for the suggestion. I will take a look.
Gregg

06-14-2010, 02:37 AM   #9
Veteran Member
cbaytan's Avatar

Join Date: Nov 2008
Location: Trabzon/Turkey
Photos: Gallery
Posts: 1,010
QuoteOriginally posted by lawjbm Quote
Thanx so much for the suggestion. I will take a look.
Gregg
Anytime, forgot to say I wouldn't invest on DA lenses because an FF camera will come out eventually.
06-14-2010, 03:59 AM   #10
Veteran Member
Ben_Edict's Avatar

Join Date: Jul 2007
Location: SouthWest "Regio"
Photos: Albums
Posts: 3,303
QuoteOriginally posted by cbaytan Quote
Try FA 100-300, about $ 100 will get you sharpest zooms ever with incredible colors, which'll make you proud just because you have chosen Pentax.

'nuff said.

[IMGTALL]http://www.baytan.org/Pentax/2708-Glass.jpg[/IMGTALL]
Sorry, but this lens is neither in build-quality nor in its max. aperture nor in anything else comparable to the DA 60-250 or the Sigma 100-300. Appart from the f/4 at 250 and 300mm respectively, you will also get a tripod collar, which is a very needed addition for long lenses, to name just one of the more obvious differences towards the FA.

I have seen some nice images taken with that FA lens, much better, than the low price tag would make me assume - but being the "sharpest zoom ever" is very optimistic, I think.

There is still a gap between nice images and the "sharpest zoom ever".

If you go through our reviews database: Pentax Lens Review Database - SMC Pentax-FA 100-300mm F4.7-5.8 Lens Reviews

You'll very often find a high rating of "9" or so, and the reviewer adds, that the high rating is meant in relation to the low price.

Ben
06-14-2010, 04:27 AM   #11
Ash
Community Manager
Loyal Site Supporter
Ash's Avatar

Join Date: Mar 2007
Location: Toowoomba, Queensland
Photos: Gallery | Albums
Posts: 22,679
Unless you're absolutely going FF, the DA 55-300 will give you the best bang for your buck IMO.
Most users will be happy with APS-C cameras, so having DA lenses will be no disadvantage.
In fact the DA 55-300 is prized the pick of consumer telezooms for image quality and size, significantly better than the FA 100-300.

There just cannot be any comparison between these consumer telezooms and the heavier, better quality Tamron 70-200/2.8, DA 60-250/4, Sigma 70-200/2.8 and 100-300/4.
06-14-2010, 05:43 AM   #12
Veteran Member
cbaytan's Avatar

Join Date: Nov 2008
Location: Trabzon/Turkey
Photos: Gallery
Posts: 1,010
QuoteOriginally posted by Ben_Edict Quote
Sorry, but this lens is neither in build-quality nor in its max. aperture nor in anything else comparable to the DA 60-250 or the Sigma 100-300. Appart from the f/4 at 250 and 300mm respectively, you will also get a tripod collar, which is a very needed addition for long lenses, to name just one of the more obvious differences towards the FA.
No need for collar if mean for this lens, very lightweight.


QuoteOriginally posted by Ben_Edict Quote
There is still a gap between nice images and the "sharpest zoom ever".

Ben
Yes but I said zoom"s", though "s" implies "one of the" in front. Laziness of talking english you know.
BTW I meant the F4.7-5.8 silver version not the inferior F4.5-5.6 version.
06-14-2010, 05:54 AM   #13
Pentaxian
bimjo's Avatar

Join Date: Jan 2008
Location: Pasco, WA
Posts: 967
QuoteOriginally posted by cbaytan Quote
No need for collar if mean for this lens, very lightweight.
Well, maybe you can hand hold a f/5.8 300mm lens, but I sure can't. Tripod collar mandatory for us mere mortals I'm afraid.
06-14-2010, 06:46 AM   #14
Veteran Member
Ben_Edict's Avatar

Join Date: Jul 2007
Location: SouthWest "Regio"
Photos: Albums
Posts: 3,303
QuoteOriginally posted by bimjo Quote
Well, maybe you can hand hold a f/5.8 300mm lens, but I sure can't. Tripod collar mandatory for us mere mortals I'm afraid.
Same with me. I can generally see a marked improvement in sharpness, when I am able to at least use a monopod - and a tripod collar is a must, to balance the setup and to reduce vibrations by the protruding long lens.

Ben
06-14-2010, 07:01 AM   #15
Veteran Member
cbaytan's Avatar

Join Date: Nov 2008
Location: Trabzon/Turkey
Photos: Gallery
Posts: 1,010
QuoteOriginally posted by bimjo Quote
Well, maybe you can hand hold a f/5.8 300mm lens, but I sure can't. Tripod collar mandatory for us mere mortals I'm afraid.
Well, don't get any wrong ideas against my lovely FA 100-300,

from the lens database:

DA 16-45mm : 366g filter diameter: 67mm, length: 9.1cm
FA 100-300mm: 390g filter diameter: 58mm length: 12.8cm

To me, FA 100-300mm is more balanced and less bulkier on K200 and K7 than my 16-45mm.
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!
af, bit, concern, da*, k-mount, k7, lenses, pentax lens, sigma, slr lens
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
KX Advice Sought Jewelltrail Pentax DSLR Discussion 62 03-08-2010 09:47 PM
Strobist advice sought mi2nc Pentax Camera and Field Accessories 7 04-20-2009 11:00 AM
Tripod Advice Sought Jewelltrail Pentax Camera and Field Accessories 13 02-13-2009 05:14 AM
Your advice sought - new lenses - zoom and macro doggydude Pentax SLR Lens Discussion 5 12-31-2007 05:16 AM
Seeking advice: ideas on a zoom sought doggydude Pentax SLR Lens Discussion 16 08-09-2007 11:22 AM



All times are GMT -7. The time now is 04:13 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