Free Shipping on ALL Products
camera reviewsbest cameraslens reviewsphotography tipscamera forumvideo toursphotography bookssupport me
It is currently Mon Jan 16, 2017 7:18 pm

All times are UTC

Post new topic Reply to topic  [ 2 posts ] 
Author Message
 Post subject: How much better is SSM?
PostPosted: Sat Sep 13, 2008 6:31 pm 
i was just wondering what the BIG difference between the traditional screw based autofocus compared to this SSM. How does the SSM work and does it only benifit models like the a700, or will it improve all autofocusing, even on the a100? And is it worth the money?

 Post subject:
PostPosted: Sat Sep 13, 2008 6:46 pm 
User avatar

Joined: Thu Nov 08, 2007 6:30 pm
Posts: 6953
Location: The Netherlands, Ridderkerk
YES, SSM makes a huge difference. I've tried both the Sony 75-300mm (while waiting at Helsinki airport :) ) and the 70-200mm f/2.8 G SSM, and there's a gigantic gap between them. Not only in IQ of course, but the speed and accuracy of the autofocus is remarkable. It's just way, way faster than the body-driven AF. You really should go to a camera store and ask whether you can try an SSM/USM/HSM lens to see the difference. You'll like it, I'm sure.

How it works. Not 100% sure. Instead of relying on the AF motor build into the camera, there's a motor build into the lens, which gets the neccessary information from the camera and then focusses much faster and much more accurate.

It benefits all bodies, since the AF speed is no longer dependent on the body, only on the Super Sonicwave Motor of the lens.

Whether it's worth the money. If you buy the 70-300mm G SSM, it is, I guess. Combined with the higher quality of the glass. The 70-200 f/2.8 and the 300mm f/2.8 might not quite be worth the money for AF improvement only, the superb quality and constant high aperture are the biggest selling points for those. Same goes for the Zeiss 24-70mm f/2.8, also equiped with SSM. I'm interested to the price and performance of the 70-400mm G SSM coming up, that will be a very interesting lens as well.

Conclusion to this looooong post: if you have to money to buy SSM instead of non-SSM, get it. You'll enjoy it a lot, I'm sure.

I'm leaving for today! Good night y'all! :)

- Bjorn -

Street and documentary photographer | Google+ | Twitter

Leica M9-P (my article on Camera Labs) | Leica D-Lux 5 | 50mm Summilux

Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 2 posts ] 

All times are UTC

Who is online

Users browsing this forum: No registered users and 7 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