how i know if are fake focal IS 165 ? Any form to check it
1801581
If you get em from amazon, they're real. I have a pair myself, and they work just fine.
1801582
Real deal, just previous version I think. Exact same as the ones I bought for my car that I bought in-store for $280/pr
1801583
No way to check that I am aware. When I received mine they were in proper focal packaging and appeared to be authentic.
1809395
http://regex.info/exif.cgi .The way I found out how to know exact actuations is take latest image captured by camera, jpg is better and faster. upload to the site address I provided above, its actually called Jeffrey's Exif viewer. You won't believe how much information on one little jpg. You will scroll down through information quite a bit until you will see shutter releases or actuations so keep an eye out. Since you are buying from a company you would have to rely on them to do it. You can always check if they tell you how many actuations by following above procedure after you buy camera.
1712124
It's a fixed-focus camera. But for less than $30, it's inexpensive to experiment with. Some folks are doing really interesting things with the Pi Camera Module, including modifying it to mount other lenses (which might get you to your focal distance goals). See this page, for example: http://www.truetex.com/raspberrypi
1941128
I purchased this item and the one I received was a true Canon product. I even went out to the Canon website to check their "How to spot a fake" section and it seemed to pass the test. By virtue of that, the warranty should be honored.
196468
Not from what I have seen. At 100x, the distortion is beyond a focus adjustment.
1833849
Just beware of putting subjects on the edge of the frame when @ 17mm - 25mm. You are going to get horizontal distortion, not a ton but its not flattering to those on the side. No one would ever notice this on a landscape photo but when its a person... Pretty easy to fix in post if you have a decent software. Its a great lens though!
555284
http://www.astronomyforum.net/dobsonian-telescopes-forum/143081-dslr-prime-focus-xt6.html
650245
Unless I'm seeing things wrong, it should be just fine. http://www.singleserveespresso.com/pictures/CapsuleComparison.jpg
52205
The smaller the number the wider the focal point, the larger the number the tighter the focal point. So 2.8mm is good for keeping an eye on your whole drive way and 12mm would be great for keeping an eye on the mail box at end of the driveway.
628682
I just checked mine with a caliper, and they'll close down to about 55mm. My eyes are pretty close set at 61mm, and they work for me.
1695328
Technically it is an 18-35. The camera crop sensor changes the perspective not the actual lens.
505749
I also have not seen this reference in any printed material. All true macros should have this. I have been satisfied with the image quality. My only problem is on auto focus. If the focus has to search and cannot lock focus it falls back to infinity focus even if the close limit is chosen. Otherwise it is a fine lens.
1766981
Yes there is....! Is the previous generation. Not much difference http://www.focal.com/en/integration-archives/271-is-130-3544055750116.html
1463486
It will be cropped. To equal as a full frame sensor, it will show 17.6-25.6mm (1.6x11=17.6; 1.6x16=25.6)
797666
That I don't really know - I would check the specs on your camera, then the specs on these lenses. sorry I couldn't be more helpful. You might also want to contact the seller's technical support.
504669
check the scope's spec. sheet it should have the diameters of the lenses on it.
921475
Don't have. http://m.dpreview.com/products/canon/lenses/canon_28-200_3p5-5p6_usm