Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
01-06-2009, 08:08 PM   #46
Administrator
Site Webmaster
Adam's Avatar

Join Date: Sep 2006
Location: Arizona
Photos: Gallery | Albums
Posts: 40,944
Thanks! Lens list updated.


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:

01-06-2009, 08:15 PM   #47
Veteran Member




Join Date: Apr 2008
Location: Minnesota
Photos: Gallery
Posts: 1,530
Are there any real differences between Sigma EX DG lenses vs Sigma EX lenses? I have both 105mm and 50mm 1:2.8 Marco lenses in the EX but NOT the EX DG versions that are currently in the database.
01-06-2009, 08:32 PM   #48
Pentaxian
Moderator Emeritus




Join Date: May 2007
Location: Edmonton Alberta, Canada
Photos: Gallery | Albums
Posts: 10,648
Original Poster
I can't be sure about the 50mm version but the 105mm which I have (non - DG) has one slight difference. This used to listed on the Sigma web site but It's not there now. The DG was said to have a 'floating' element that would make the lens sharper when used as a telephoto.

The nature of a dedicated macro lens makes it sharpest at the close up ranges. It may have a bit more difficulty keeping that sharpness at infinity. Mine is great at both and I can't see any issues with it as a mid telephoto. I've used it for lots of stuff from a sunset to a portrait lens. Sharp as a tack.

The DG designation is "made for digital" and designed to correct for CA's. Again mine shows no issue with this at either end of the range.

From the Sigma web site:
DG: The most suitable lenses for 35mm film single-lens reflex cameras, as well as for digital SLR cameras. Sigma's development of the DG (Digital) range of lenses has concentrated on the correction of distortion and aberrations. Magnification of chromatic aberration is particularly conspicuous with digital cameras. The optical designs and cutting-edge technology incorporated by Sigma eliminate flare and ghosting from te image sensor and create excellent color balance. Vignetting is minimized whilst marginal illumination is ensured. These high performance lenses are equally suited for digital and analogue cameras.
01-06-2009, 11:38 PM   #49
Veteran Member
Jewelltrail's Avatar

Join Date: May 2008
Location: Rhode Island
Photos: Albums
Posts: 4,180
QuoteQuote:
Our hope was to create the best Pentax resource section on the net. If you have a photo of a Pentax lens that is missing, You can attach a picture(s) of your lens to this thread, or put it in the gallery and send Adam or myself a Pm with the link to the lens. We'll update the Pentax section for you and then you can remove the lens photo from your gallery. If it's a 3rd party lens, you can upload a good quality image yourself directly or even create a new listing. Peter Zack
Wow! Thanks Peter for re-invigorating our awesome lens database. This is a great resource, which your thread is making even better.

When Peter talks, people listen.

01-07-2009, 09:45 AM   #50
axl
Veteran Member




Join Date: Mar 2007
Location: Nove Zamky, Slovakia
Photos: Gallery | Albums
Posts: 7,181
QuoteOriginally posted by Adam Quote
Added the image to the first one! Thanks!

By the way, the listing which is yours should have an "edit product" link.
Hi Adam,
any specific reason why Sig 10-20 and Tokina 28 pics haven't been uploaded? I provided link earlier in the thread where I posted pics for both. If it's quality issue, just let me know, I'm happy to reshoot them....
BR
Peter
01-07-2009, 09:51 AM   #51
New Member




Join Date: Jan 2009
Location: Sweden
Posts: 2
Here comes two photos of Pentax SMC-F 70-200 mm f/4-5.6 which seems to be little of a "ghost" within the pentax world...=)

Anyway, here it is!
Attached Images
   
01-07-2009, 03:51 PM   #52
Administrator
Site Webmaster
Adam's Avatar

Join Date: Sep 2006
Location: Arizona
Photos: Gallery | Albums
Posts: 40,944
I've now added the photo to the database! This lens is not SMC, however. It is the Pentax-F 70-200mm, a cheaper version of the SMC Pentax-F 70-210mm, F4-5.6.

Pentax Lens Review Database - 70-200mm F4-5.6

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:

01-07-2009, 04:55 PM   #53
New Member




Join Date: Feb 2008
Location: Israel
Posts: 10
pictures of MF tamron adaptall 90mm macro 2.8

here is a picture of my tamron adaptall 90mm macro 2.8 1:1

here is the review listing
PentaxForums.com Third-Party Pentax Lens Review Database - MF SP 90mm F/2.8 MACRO 1:1

Attached Images
 
01-07-2009, 05:14 PM   #54
Pentaxian
Class A's Avatar

Join Date: Aug 2008
Location: Wellington, New Zealand
Posts: 8,934
Photos of Sigma 28mm f/1.8 EX DG

Here are two photos of my Sigma 28mm f/1.8 EX DG for this database entry: PentaxForums.com Third-Party Pentax Lens Review Database - 28mm F1.8 EX DG ASPHERICAL MACRO (AF Lens)

I hope these are useful.

I've added an entry for the Soligor C/D 4 2x Auto Teleconverter, P/KA + R/XR (at PentaxForums.com Third-Party Pentax Lens Review Database - C/D 4 2x Auto Teleconverter, P/KA + R/XR) but didn't follow up with a review since I don't have a comparison with other teleconverters. Perhaps someone has this converter too and could add a review.

P.S.: I'm expecting to receive more lenses in February and will provide photos as they arrive.

Last edited by Class A; 08-07-2010 at 09:21 AM.
01-08-2009, 11:23 AM   #55
Veteran Member
Fl_Gulfer's Avatar

Join Date: Jul 2007
Location: Florida Gulf
Photos: Albums
Posts: 3,033
Here are 2 shots of the Vivitar 28-90 1:2.8-3.5 Series 1 There wasn't any in the review.




I also have a photo of the Ricoh "P" 105mm f 2.8 Which is the same as the Vivitar Series 1 and the Lester Dine versions if interested.

I also added the Ricoh "P" 70-210 f 3.9 to the reviews.
01-08-2009, 01:49 PM   #56
Administrator
Site Webmaster
Adam's Avatar

Join Date: Sep 2006
Location: Arizona
Photos: Gallery | Albums
Posts: 40,944
Added the last 3 photos. Thanks!

Any more original Pentax lens photos are still welcome!

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:

01-08-2009, 07:59 PM   #57
Pentaxian
Nick Siebers's Avatar

Join Date: Jun 2008
Location: Madison, WI
Photos: Gallery | Albums
Posts: 2,139
Here's the Pentax K 80-200mm zoom I reviewed. Just figured out how to post pictures. (Not bright, sorry :-) It is basically the same lens as the M version. In fact I thought it was for the first 6 years I owned it. What was that about being not bright?

01-08-2009, 09:01 PM   #58
Administrator
Site Webmaster
Adam's Avatar

Join Date: Sep 2006
Location: Arizona
Photos: Gallery | Albums
Posts: 40,944
Added that shot- thanks a lot!

K and M lenses are so similar I don't even know why they made two separate series. But, I guess the size was reducd somewhat...

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:

01-10-2009, 04:39 AM   #59
Senior Member
feverbeaver's Avatar

Join Date: Aug 2008
Location: Langen, Germany
Photos: Gallery
Posts: 106
SMC Takumar 6x7 150mm F2.8

SMC Takumar 6x7 150mm F2.8

Name:  Takumar_6x7_150.jpg
Views: 338
Size:  118.5 KB
01-10-2009, 05:48 AM   #60
New Member




Join Date: Jan 2009
Location: Sweden
Posts: 2
Here's a picture of the Pentax-F 28-80mm F3.5-4.5.
I saw that it was missing under: Home >> Pentax K-Mount Bayonet Lenses >> Other Pentax Bayonet Zooms

Enjoy!
Attached Images
 
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!
database, k-mount, lens, lenses, party, pentax, pentax lens, photo, pictures, section, site, slr lens
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
We need photos of your camera- a request to all members! Adam Pentax DSLR Discussion 55 01-30-2011 08:02 PM
Any Japanese members or members in Japan? RobG Travel, Events, and Groups 14 01-16-2010 09:27 PM
News A Request for Forum Members Adam Site Suggestions and Help 21 10-28-2009 06:22 PM
Looking for more pictures/reviews on the Database To all members Peter Zack Pentax SLR Lens Discussion 10 02-15-2009 12:54 AM
Request from fellow forum members... DanLoc78 Photographic Technique 25 05-11-2008 09:37 PM



All times are GMT -7. The time now is 10:36 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