Choosing a lens is not an easy job, especially for a Canon user, because of so may offers. And a good review site is always useful. One of the best in this field is The-Digital-Picture.com made by Brian Carnathan. Beside the reviews it has a very good comparison page for all kind of lenses, but also for cameras; http://www.the-digital-picture.com/...meraComp=979&SampleComp=0&FLIComp=3&APIComp=0 I must say that I have no interests in this site, nore any relation with the owner, beside that I'm a subscriber, which is for free.
Yes, Brian works hard to keep the site interesting and informative....a valuable resource. My personal 'go to' review site is; http://www.photozone.de/Reviews .....well worth visiting. Bob
Lenses for Canon, various brands - some of the best video reviews: - Canon - Samyang - Sigma - Tamron ... - Other brands
For legacy lenses my first point of call is the Pentax Forum lens reviews. The reviews are by users and there are good and bad reviews...but there are plenty and it grows as the members add new lenses.
Do you know where those lens test charts come from? I've looked on the site but I have not seen the source. I would like to get the actual image files if possible. Thanks.
Pentax site is very good, I use it often to get information on vintage m42 lenses. A couple others that come to mind: Fred Miranda: http://www.fredmiranda.com/reviews/ for vintage lens of all sorts MFlenses.com is a great resource. While the review section isn't as robust as the Pentax forum and Fred Miranda, searching the forum turns up very useful information and real user accounts.
I don't know exactly, but I have seen some test charts on ebay. http://www.ebay.com/sch/i.html?_fro...Xtest+charts.TRS0&_nkw=test+charts&_sacat=625
Here's the one I've been using for a while, which is simply tacked on the wall and does a great job of comparison between the various cameras I have, but I was hoping that someone had a source of the chart that digital-picture is using, as it would be a much better apples-to-apples comparison, particularly to all of the lenses and cameras Brian has tested.
Yesterday I sent an email to Mr. Carnathan, but no replay yet. I was looking for a good chart for years, but that's alI I could find.
Yes, exactly what I need. I could replace my 60D with a new 70D with that kind of money. Or buy a wide lens
We need a svg version that can be scaled to the required resolution. A sketch made in Inkscape (a free application like Corel Draw or Adobe Illustrator). But... writing this, I thought to give google search another chance, with different searching terms and, I found it. Now you can scale it to your heart content in Inkscape.
THANK YOU!!!!!!! I can easily scale it and print it by importing it into Gimp at about any resolution. I first tried it at 5700 (figuring 19" at 300dpi) but it showed some artifact. So, I did it a 22800 (19" 1200dpi) and it came out very clean. I saved it full size as a .tif with no compression and it came out to a totally monstrodious size, like 1.29 gigabytes - LOL. When I get home I'll try printing it on the Canon Pro 100 at 13x19 and see what it looks like. Thanks again.
Welcome! You can load it in Inkscape, change the dimensions (properties) of the document (and dpi resolution), scale the drawing proportionally, then export in any image format. Or print it directly from Inkscape. You can also export it in pdf format. The advantage of working in Inkscape is that it is a vector application and can scale and redraw without losing the resolution - you can do any level of zoom and the image will look sharp every time. But keep the proportions, to remain ISO compliant.
Looking a bit more at digital picture, here''s an explanation of the chart and how he does the tests. http://www.the-digital-picture.com/Help/ISO-12233.aspx
