Teleconvertors
Jan 16, 2013 10:04:27 #
Jan 16, 2013 10:35:11 #
Jan 16, 2013 13:14:30 #
I'm using a Tamron 18-270 on a Nikon D7000, with a Bower MC 2X N/AFo Tele - Converter. It works, it's not terrific but it works.
Jan 16, 2013 14:03:28 #
Well I am going to get a good income tax refund this year. I think I see a new lens in my future.
Jan 16, 2013 14:13:25 #
Irvingite wrote:
Yes I know this subjest has been brought up before... (show quote)
Sorry, all I have is an (informed) opinion. Can't help you.
Jan 16, 2013 14:37:42 #
I got the same guff from Nikon about a 70 300mm lens they said it was too slow for a T/c. I bought a kenko pro 1.4 for my macro lens, and it works fine on my slow 70 300. This link my be of use to you
http://www.flickr.com/groups/tamron18-270_vc_pzd/discuss/72157626764194795
http://www.flickr.com/groups/tamron18-270_vc_pzd/discuss/72157626764194795
Jan 16, 2013 15:05:47 #
Irvingite wrote:
Yes I know this subjest has been brought up before... (show quote)
Hello Ervingite, and all, I own both the Tamron 18-270mm f3.5-6.3 Di II VC PZD lens and the Tamron 2X SP AF Tele-Converter. I matched them to a Canon 50D camera, and took a couple of shots. The quality of the shots are questionable. I lost AF, and possibly VC. But the lens did function manual focus.
My Tamron lens was sent to Tamron last month for a "soft focus" problem. It was sent back to me, and arrived on Jan 3. The Tamron rep said it had been cleaned, and calibrated to specs for Canon cameras. (this was done on warranty, since the lens is only 6months old, with a 6 year warranty) Last Sunday I calibrated the lens to the camera using FoCal software. Here are the two shot I made in the backyard using the lens and converter.
18mm at about 100yds
270mm at 100yds
Jan 16, 2013 15:42:58 #
Hello again, I took a look at the meta data from both of these shots and found the lens, nor the 2x converter is identified properly. It says the lens is 85mm, this incorrect. If you dial down, it tells the lens is 18-270 and gives the zoom value of the shot. This proves there is a mis-connection from the camera to the lens through the teleconverter. So, 1. loss of focus control or EF, 2. Loss of communication through the converter exists for META data, 3. Possible loss of VC to the camera body. So, now you have a bucket of "facts" about the lens, and tele-converter.
Now, none of these problems exist when I use my Canon EF 70-200 f4L USM lens. The photos are tack sharp, with or without the tele-converter. I actually bought the converter to use with my Tamron 200-500mm zoom, Canon 70-200mm zoom for a trip to my upcoming trip to Costa Rica.
Now, none of these problems exist when I use my Canon EF 70-200 f4L USM lens. The photos are tack sharp, with or without the tele-converter. I actually bought the converter to use with my Tamron 200-500mm zoom, Canon 70-200mm zoom for a trip to my upcoming trip to Costa Rica.
Jan 16, 2013 15:45:35 #
FilmFanatic
Loc: Waikato, New Zealand
A teleconverter on a super zoom is highly not recommended! Image quality is marginal to begin with on those things
Jan 16, 2013 18:16:48 #
I use a Kenko N-AF 1.4X Teleplus Pro 300 on my Nikor 70-300 Kit Lens coupled with the old D50 almost exclusively. Love the combination. As for sharpness and great all around performance, see Gregoryd45's fabulous photos useing a 1.4 converter. Nobody does it better.
Jan 16, 2013 18:46:05 #
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