mark_pierlot Posted May 12, 2013 Share Posted May 12, 2013 <p>I just bought my wife and daughter a used XSi body in great condition for next to nothing. I have numerous EF lenses, and think the Rebel will make a good replacement for our point and shoot, as well as be a good tool for teaching my daughter the fundamentals of photography.</p> <p>My question is simply, what is the maximum usable ISO of the camera? Our Canon A640 is hopeless above 400, and I'm hoping the Rebel is at least decent at 800 or a little higher.</p> Link to comment Share on other sites More sharing options...
Spearhead Posted May 12, 2013 Share Posted May 12, 2013 <ol> <li>Depends on what post-processing software is used.</li> <li>Depends on sizes for image viewing.</li> <li>Depends on the viewer's tolerance for noise.</li> </ol> Music and Portraits Blog: Life in Portugal Link to comment Share on other sites More sharing options...
alan_bryant1 Posted May 13, 2013 Share Posted May 13, 2013 <p>Jeff is right in saying noise is relative; however I would expect the XSi to easily outperform the A640. The XSi at 800 will probably be significantly better than the A640 at 400. You can improve it even more by shooting RAW and postprocessing well.</p> Link to comment Share on other sites More sharing options...
jamie_robertson2 Posted May 13, 2013 Share Posted May 13, 2013 <p>My bet is that the XSi will be as good at 800 as your A640 is at 200.</p> Link to comment Share on other sites More sharing options...
PuppyDigs Posted May 13, 2013 Share Posted May 13, 2013 <p>Our local CVS still has the XSi on sale for $599 with kit lens, albeit 5 years out from its debut! I'm sure a well exposed carefully processed RAW file with a wee bit of Neat Image or Topaz Denoise will look pretty dad burn good at ISO 800 to 1600. The 12MP CMOS was sort of a sweet spot in the Rebel line.</p> Sometimes the light’s all shining on me. Other times I can barely see. - Robert Hunter Link to comment Share on other sites More sharing options...
mark_pierlot Posted May 13, 2013 Author Share Posted May 13, 2013 <p>Thanks for the observations, guys. Now I don't feel so bad about getting such an outdated camera. ;-) And I paid a mere $150 for it (<em>sans </em>lens).</p> Link to comment Share on other sites More sharing options...
dogbert Posted May 14, 2013 Share Posted May 14, 2013 <p>Whe I owned it I regarded ISO 800 as usable without too many concerns provided exposure was accurate, but ISO 1600 as an emergency setting - still fine for snapshots, however.<br> I imagine a well exposed shot at ISO 1600 would still look better than the A640 at ISO 400.</p> Link to comment Share on other sites More sharing options...
Andrew Gosden Posted May 14, 2013 Share Posted May 14, 2013 <p>I don't usually use 1600 on my XSi, but I forgot it was set to that when I took this picture. This is from a RAW file converted with the Lightroom default settings. I did not do any additional sharpening or noise reduction or anything else. This may not be big enough to really show much, but I figure an actual picture would be more helpful than more words.</p> <p> </p><div></div> Link to comment Share on other sites More sharing options...
mark_pierlot Posted May 21, 2013 Author Share Posted May 21, 2013 <p>Thanks for the image, Andrew. It looks pretty clean. I wasn't expecting mere full stop ISO increments, which is going to take some getting used to.</p> <p>My six year old daughter was thrilled to get the camera, and had a lot of fun shooting with it yesterday. I wanted to keep the weight down, so I attached my 40/2.8 STM pancake. That combo is not too much bigger than the point and shoot.</p> Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now