Free Shipping on ALL Products
camera reviewsbest cameraslens reviewsphotography tipscamera forumvideo toursphotography bookssupport me
It is currently Sat Aug 30, 2014 6:20 pm

All times are UTC




Post new topic Reply to topic  [ 4 posts ] 
Author Message
PostPosted: Wed Jul 25, 2007 10:36 am 
The 17-70mm F2.8-4.5 DC MACRO HSM and the 18-50mm F2.8 EX DC MACRO HSM:
http://www.sigma-photo.co.jp/english/news/070725_1850_1770_na.htm

They are not real 1:1 macro lenses though...

Darrin


Top
  
 
 Post subject:
PostPosted: Sun Jul 29, 2007 10:30 am 
Offline
Moderator
User avatar

Joined: Sun Nov 05, 2006 11:08 pm
Posts: 7925
Location: Germany
So you can use them on your D40.
What I wonder is, why does only the Nikon-owner get HSM from Sigma? Just a temporary state??

_________________
Thomas (beware: Nikon-fanboy and moderator!) My Lens Reviews, My Pictures, My Photography Blog
D800+assorted lenses


Top
 Profile  
 
 Post subject:
PostPosted: Sun Jul 29, 2007 8:33 pm 
Offline
Moderator
User avatar

Joined: Sun Nov 05, 2006 11:08 pm
Posts: 7925
Location: Germany
As to your search for a fast AF on D40 prime, the Sigma AF 30mm f/1.4 EX HSM DC comes to my mind. Unfortunately the border-sharpness is "borderline". See test here.

_________________
Thomas (beware: Nikon-fanboy and moderator!) My Lens Reviews, My Pictures, My Photography Blog
D800+assorted lenses


Top
 Profile  
 
 Post subject:
PostPosted: Sun Jul 29, 2007 10:44 pm 
Thomas,

I think the Nikon mount of those 2 lenses got HSM because of the D40(x). Since these are the first Nikons without in camera focus motor, probably Sigma did not use regular focus motors in most of their Nikon mount lenses - an HSM focus motor was the fastest way to make those lenses autofocus on the D40(x). On other forums, some Sigma lens owners already concluded - from the look of these lenses - that the HSM used in them is not true HSM (just like the Nikkors 18-55 II and 55-200 VR are not true AF-S lenses) - that means there is no manual focus override, the focus ring rotates during autofocus nd they may not focus as fast as the true HSM lenses... However, a constant f2.8 18-50 lens can still be very useful - let's wait for the price and a good review...

Yeah, I know about the 30mm f1.4... though $400 is more than my budget for a prime... I'm even considering manual focus now... Sigma has a 28mm f1.8 within my budget, but I could not find a proper review yet...

Darrin


Top
  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 4 posts ] 

All times are UTC


Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum

Search for:
Jump to:  

All words, images, videos and layout, copyright 2005-2012 Gordon Laing. May not be used without permission.
/ How we test / Best Cameras / Advertising / Camera reviews / Supporting Camera Labs

Webdesign by Alphabase IT
Powered by phpBB® Forum Software © phpBB Group