Got my Tamron 1.4x SP AF TC ... SAMPLE PICS/initial impressions inside!
 

oooh look what came in the mail today!

First impressions:
I'm really happy that it matches the colour of my 70-200 f4L perfectly
It communicates the minimum f-stop as 5.6
It focuses every bit as fast as without the TC
I can't see any more CA/reduction of IQ than the lens without it...

Without further ado...here are a couple sample shots (just walked outside of my house)...will do some better pics soon :)

http://img.photobucket.com/albums/v3...m/IMG_9122.jpg

http://img.photobucket.com/albums/v3...m/IMG_9123.jpg

obligatory branches with white sky shot :)

http://img.photobucket.com/albums/v3...m/IMG_9127.jpg

http://img.photobucket.com/albums/v3...m/IMG_9129.jpg

And here's a sample of what I figure would pretty much be the worst possible IQ I could get out of it:

lens @ 200mm w/ TC (280mm total)
ISO 3200
f 5.6 (aperture wide open)
1/100 sec
handheld
30D with 70-200 f4L

I know it's a little underexposed, but it's just a test...no PP, of course

Just to let you know when shooting on a crop body its: 200mm x 1.4TC x 1.6Crop = 448mm goodness!

oh I know :D I didn't want to complicate too much by throwing that into the works too...the point was simply that the lens was at its biggest possible magnification :)

and I agree...448mm (9x magnification) is awesome...I really missed the magnification my old Sigma 75-300 gave me, but not the IQ...well now I've got the best of both worlds lol

Looks good. Makes for a decent wildlife kit!

Thanks :) Yeah, that was one of the biggest reasons I got it...My g/f and I go to Jasper quite a bit in the summer and go for hikes all the time, plus we're planning a trip to the States (SoCal/Las Vegas/Grand Canyon) this summer and I figured this may come in handy :)

Really gotta get a grip for the 30D now, though because it's getting VERY unbalanced and borderline uncomfortable.

You should swing by vancouver and pick my up before that trip =)
I have been wanting to drive through there for a while now, almost made it last year, but my buddy had to find a place to live or he would have been homeless when we got back haha

haha...in the spring of '07 we went down to Monterey, Cali and back (with a few days in San Francisco) and I was homeless the whole time lol...I decided if I was going to move, I might as well move out of my place a month early, save some money and let the rent I'm saving pay for the trip ;)

is it just me or does the saturation and contrast look kind of weak? kind of like there is a white film over the photos. are the pictures like that without the TC? I also have the 70-200 F4 and have thought about getting a TC.

isn't the 30D a 1.3 crop?

Huh? Err, no. The 30D is a 1.6x. The 1D mkIII is a 1.3x crop.

tallshorty: Nope, saturation and contrast are great...they probably look "weak" because 99% of the people who post pics on the net will bump the sat/contrast sky-high before posting them. (If you look at the first pic, the yellow/red signs as well as the fire hydrant in the background are very faithfully reproduced).

Senna's right...MOST Canon DSLRS (10/20/30/40/50D, XT/XTi/XS/XSi, etc) are 1.6x (I'm a huge fan of ultra-wide angles, and only wish it was 1.3x lol).

i have the same converter.. i noticed it made my images... much softer.. like MUCH MUCH softer. and the bokeh.. isn't exactly to die for... but for some stuff its okay i guess

you won't get to-die-for bokeh with a min aperture of 5.6 anywhere (assuming you throw it on an f4 lens), that's not really the TC's fault...as for soft...you may have just gotten a bad copy.

I was covering the rescue/recovery of the two dead snowmobilers near McBride, BC last week and took my 30D/Tamron TC/70-200 with me and I'm very pleased with the quality of the images. When I'm feeling less lazy I'll throw one or two up here to give you an idea.