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Feb 18, 2015 11:18:48   #
Hopefully, you never got the comment, "gee, must be great to have that wonderful equipment to take pictures for you!"

Thanks for sharing those cats!
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Feb 18, 2015 10:41:38   #
Another vote here for the Canons. I have a S100, a G16, and a SX50 HS. Like said a few messages ago, the S100 is incredibly handy, images are excellent quality for the size, but doesn't have a view finder. The G16 is a very capable compact, excellent quality images, has a view finder, and is somewhat larger than the S100. I recently took the SX50 on a Costa Rica tour as my only camera and did very well, thank you. I wear glasses and used both the LCD and the EVF without an concerns or issues. In bright sunlight, I preferred the EVF and had no problems reading camera setting, focusing, etc. With these three, my 70d spends a lot of time on the shelf.
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Feb 13, 2015 14:00:40   #
shutterbob wrote:
Don't know how many brick walls you plan to photograph from up close on your trip but I'm betting not many. You are not likely to see much if any distortion in most photos. I have this lens mounted on my Nikon D7100 when I go on trips and don't have the room or need a lot of gear. I love it for this purpose. It is reasonably wide and goes to 450mm equivalent on the cropped frame cameras it was designed for. Not real fast but with most DSLRs doing a good job at higher ISOs that is not usually much of a concern. It also does a reasonable job at macro (about 1:3). And if you do shoot a brick wall, you can correct most of the distortion pp. I have found that my full frame spends more time in the safe at home when I travel since I got this lens. Buy it....I think you will be well pleased.
Don't know how many brick walls you plan to photog... (show quote)

Thanks Shutterbob. I returned to the scene of the crime this morning and backed off to 25-30 feet and tried again. The results were much better and what little distortion at 16mm there existed was easily corrected. I'm thinking I'll give it a shot.
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Feb 12, 2015 21:34:58   #
mcveed wrote:
Of course. At that distance the bricks at 30 degree angle from you are quite a bit further from the lens than the bricks straight ahead. So they will be rendered smaller because they are further away and will result in distortion. In addition to this, the bricks at the bottom of your image, and at the top, are also further away than the bricks straight ahead, so distortion there too. Further, if your camera is not perfectly level, the distortion will be unevenly distributed from top to bottom. At that distance with a 16mm lens it would be a miracle if you didn't get distortion. I think even a flat field lens would show distortion in this situation.
Of course. At that distance the bricks at 30 degre... (show quote)

Yeah, I think you're right mcveed. I need to return to the scene of the crime and try again. Plus, bring my tripod. I kind of messed this up. Great intentions, though!! :-)
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Feb 12, 2015 19:18:41   #
Gene51 wrote:
PTLens will get rid of all of the distortion if the lens is in his database.

I downloaded the program. The lens was in his database, but I didn't see much improvement from what PSE was able to give me. I read in the PTLens help section that he will calibrate if he doesn't have a lens but didn't want to see bricks (inherently not perfect) and wanted a minimum of distance from camera to object of about 25 feet. Whereas I was no more than 6-8 feet away from the wall I shot. At that distance, I could have introduced some distortion merely by my camera position relative to the brick wall?
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Feb 12, 2015 18:40:03   #
TJer wrote:
If I had to make that decision I'd first ask myself: Was the in camera distortion control features turned on before taking the shot?, Will I be taking any architectural photos where this kind of distortion would be noticed and disliked?, Is this kind of distortion consistent through out the focal range of the lens?, Last but not least, is the lens satisfactory for your other needs? Seeing what I see here, and having looked at some of the test results, I'd probably spend a tad more and get the Nikon equivalent, the Nikkor AF-S DX NIKKOR 18-300mm f/3.5-5.6G ED VR because it seems to have better overall sharpness and consistency through the focal range. No-one can make up your mind for you though. Maybe you can compare another lense like the Tamron you tested and determine if there are differences from one lens to the other. In addition, I'd probably also rent a copy of the Nikon lens to compare with the Tamron using the same camera. Good luck with your decision!
If I had to make that decision I'd first ask mysel... (show quote)


Thanks. Yeah, my DSLR is a Canon 70d, but your suggestion is a valid one. I was thinking a Canon 18-200mm for comparison. Local camera stores are pretty reasonable about letting customers step outside and shot examples for evaluation. I guess I was just surprised to see the amount of distortion at that focal length.
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Feb 12, 2015 18:08:13   #
Here are three more pics that are as shot. As you can see, I really didn't take the time to make sure they were level, I was more interested in the brick line. All shot at f/11 and ISO-640.

16mm 1/640 sec

(Download)

52mm 1/400 sec

(Download)

185mm 1/400 sec

(Download)
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Feb 12, 2015 17:58:12   #
speters wrote:
I don't know if it is acceptable, only you can decide, but if it shows this much after correction, it sure is significant!


I kind of thought so, as well. But, I'd be the first to admit that I didn't take a lot of time in the PSE correction module. Very possible that more could be done, and I didn't have enough time with the lens to see at what focal length did the distortion pretty much disappeared. After your comment, I pulled the "corrected" image back into PSE and tried more correction. Unfortunately, movement in one direction seemed to cause problems in another.
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Feb 12, 2015 17:39:00   #
This is a question of whether I should be concerned or not. In a couple months, the wife and I will be taking a Rhine River cruise and I'm entertaining the idea of bringing a single lens instead of an armful. I looked at the Tamron 16-300mm F/3.5-6.3 Di II VC PZD Macro today. I read in a review where some "expert" thought it had excessive barrel distortion at the low end of the zoom (if that's the right expression). So I took the below shot with the lens on a Canon 70d standing relatively close to a brick wall. I then took the resulting image and loaded it into PSE 11, did distortion repair and nothing else. Bottom line, I am looking for opinions on whether the amount of distortion on the image is acceptable or not? Is the correction in PSE 11 about what I should expect and do you believe that to also be acceptable? I figure acceptable distortion is one of those "in the eyes of the beholder" things, and I sort of think it's significant but at the same time would like to hear whether hoggers think I'm over reacting. Thx!!

Native JPEG - 16mm, f/11, 1/2500 sec, ISO 640

(Download)

Native after PSE 11 Distortion Correction

(Download)
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Feb 12, 2015 12:01:41   #
Ditto on the S100, plus the added benefit of a built-in gps. The S110 refurb (wifi, no gps) is available at the Canon site for $180. I also have the G16, which I also like, but it's definitely not a small pocket camera. The Canon S-series PowerShots are really sweet cameras.
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Feb 9, 2015 17:27:29   #
Lens is SOLD - thanks.
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Feb 9, 2015 15:55:46   #
Snapit wrote:
I'm interested. How do we proceed?

Will have to let you know, lens tentatively sold. Waiting for buyer to chk his paypal. Thx for the interest.
TL
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Feb 9, 2015 00:51:36   #
Ishootcanon wrote:
Would you trade it for a 100mm macro lens with a cracked focus window? :lol:


??
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Feb 8, 2015 16:34:12   #
Canon EF mount 100mm f/2.8 Macro USM lens in "like new" condition. Has probably been used 3-4 times max! This is an incredibly sharp and fast lens for the money! Will fit either Canon EF or EF-S mounts. Includes end caps. Price is firm. Includes shipping to lower 48. PayPal accepted.


(Download)
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Feb 8, 2015 09:32:01   #
Thanks, Jerry. Fascinating look at an incredible plane.
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