tag:blogger.com,1999:blog-5826231802859523569.post7728630849416981075..comments2024-02-12T03:21:03.402-08:00Comments on Ron Martinsen's Photography Blog: REVIEW: Canon 70D and EF-S 55-250mm f/4-5.6 IS STMronmartblog.comhttp://www.blogger.com/profile/06815090271742112506noreply@blogger.comBlogger5125tag:blogger.com,1999:blog-5826231802859523569.post-20497069476822049992015-03-06T13:46:38.846-08:002015-03-06T13:46:38.846-08:00Thanks, Ron!
I upgraded to the 70D from my T4i a ...Thanks, Ron!<br /><br />I upgraded to the 70D from my T4i a year or so ago and I'm very happy with it. My only quibble is that I've been used to the way focus points are identified in the viewfinders of the Rebel series since my first DSLR, the XT: small dots that light up when they register focus.<br /><br />I'm having a hard time getting used to the large hollow boxes (instead of small dots) in the 70D's viewfinder, which are much more intrusive when composing shots. I realize that they're probably more accurate in conveying to the user what the focus is based on, but I still wish it was possible to have the dots instead on the 70D's screen.<br /><br />I do find it ironic that Micro AF Correction was reintroduced to the x0D series by a camera with such improved LiveView AF as to make correction of the viewfinder AF seem retro: <br /><br />Why bother tweaking viewfinder AF when you can get dead-on accurate AF that's just about as fast by using phase-detect by the actual sensors that will capture the image?<br /><br />Between avoiding the distracting grid of boxes and the guarantee of focus accuracy by using phase detect on the sensor, I'm being led away from using the viewfinder at all!Anonymoushttps://www.blogger.com/profile/04657432635526079851noreply@blogger.comtag:blogger.com,1999:blog-5826231802859523569.post-6169192533571737222015-03-06T12:49:48.538-08:002015-03-06T12:49:48.538-08:00Hi Phillip,
Great question. First, the NR settin...Hi Phillip, <br /><br />Great question. First, the NR setting only applies to JPEG BUT the RAW file retains the value your camera had set when it took that image. When you process that RAW data to make it human viewable the RAW processor can take that value into consideration and apply your requested amount of noise reduction when it renders that image for you. This is what DPP does, but Lightroom does not - Lightroom just does its default processing no matter what your setting is. <br /><br />Off is an option because it preserves the maximum detail and data from the image. A third party product like <a href="http://www.ronmartblog.com/2013/11/imagenomic-noiseware-portraiture.html" rel="nofollow">Noiseware</a> can actually do a better job of removing noise while preserving detail than Canon's NR, so this option exists for those people who prefer to use external products instead (like me). <br /><br />I generally use the Low setting as a little is ok, but I leave the heavy lifting to Noiseware.ronmartblog.comhttps://www.blogger.com/profile/06815090271742112506noreply@blogger.comtag:blogger.com,1999:blog-5826231802859523569.post-45044316149022851382015-03-06T12:31:33.426-08:002015-03-06T12:31:33.426-08:00Ron,
I just re-read this piece and went to check ...Ron,<br /><br />I just re-read this piece and went to check my 70D's High ISO Noise Reduction setting and found that I had set it to Off. <br /><br />I don't know whether this affects RAW files or just JPEGs (I'm pretty exclusively a RAW shooter), but why use even Low if Off is an option? (I do my noise reduction in Lightroom or Photoshop.)Anonymoushttps://www.blogger.com/profile/04657432635526079851noreply@blogger.comtag:blogger.com,1999:blog-5826231802859523569.post-37692514072689233292013-10-09T02:36:28.300-07:002013-10-09T02:36:28.300-07:00RE 1 - Whoops, thanks for pointing that out - I li...RE 1 - Whoops, thanks for pointing that out - I linked to the wrong one and made a mistake there. I'm glad you mentioned that!<br /><br />RE 2 - To be fair I'm used to the 1D X, so most cameras feel slow to me. That said, there may be some statistic out there that claims the 70D is better than the D7100, but in real world use they are very similar. My memory of the D7100 is that it felt faster, and I certainly had better luck catching birds in flight with it.<br /><br />I tried with high ISO noise reduction turned off, but that didn't make any difference. Whoever told you that it does is full of crap. The best way to rule out the variables is to just leave the lens cap on, switch the camera to manual with a fixed shutter speed, ISO and wide open aperture. That'll help you count fps. In real world, it's just a matter of using it and seeing which one seems to have a better keeper rate which is a combination of the camera burst mode, AF performance and the lens AF speed. <br /><br />I was using the Sandisk 16GB Extreme Pro 95mb/sec - which is faster than the camera's SD write performance. <br /><br />I'm a Canon guy and I like Canon, but I still stick with my conclusion here.ronmartblog.comhttps://www.blogger.com/profile/06815090271742112506noreply@blogger.comtag:blogger.com,1999:blog-5826231802859523569.post-12646661103430039022013-10-08T14:45:31.082-07:002013-10-08T14:45:31.082-07:00Just a couple of minor comments:
1. The Review you...Just a couple of minor comments:<br />1. The Review you linked to on SLR Gear for the 55-250mm IS is for version II not the new STM.<br />2. I question your results regarding the 70D's burst mode. All other 70D reviews place it well ahead of the D7100 in that respect. What card did you use in your testing and did you have high ISO noise reduction turned off?Anonymousnoreply@blogger.com