What follows are four photos taken of a car with A (Alabama) flags on it windows. To give you an idea of distance, there were 4 parking spaces between me and the Alabama car. Skies were blue, sunshine on the flag. There was a brisk wind and the flags were flapping vigorously. All four snaps froze the flapping well.
This photo with my Canon 70-300 IS USM lens by itself. The lens was on 300 mm.
Hack
This message was edited Dec 20, 2009 1:56 AM
This pic is with the Tamron 1.4x Teleconverter between the lens and the Canon 40D. The 70-300 lens was zoomed to 300 mm. Autofocus worked every time I triggered it. I didn't reduce the f/stop by one, as some recommend. The camera was on P mode for all the shots.
The 1.4x behind the 300mm produces 420mm (1.4 x 300).
Hack
This message was edited Dec 20, 2009 1:54 AM
This pic is with the Tamron 2x Teleconverter between the lens and the Canon 40D. The 70-300 lens was zoomed to 300 mm. Autofocus worked 50% of the time. On this shot it worked. I didn't reduce the f/stop by two, as some recommend. The camera was on P mode for all the shots.
The 2x behind the 300mm produces 600mm (2 x 300),
Last thing I did was attach the 1.4x converter to the 2x converter and then placed the stack between the camera and the lens. That gave me a whopping 840mm (300 x 1.4 x 2). It would not autofocus, so I used manual focus and was happy with the image that resulted. I did nothing to the camera's settings, kept it in the P mode.
This flag was on the far side of the car. The previous three were on the near side. Didn't realize I did that. The reflection of the flag in the last photo is when I realized this last pic was of the other flag (a little farther away).
Hack
This message was edited Dec 20, 2009 2:04 AM
I would like to have used a bird, but couldn't find one that would stay put long enough for me to set up the various combinations of lens and teleconverters. Just as I finished a girl got in and drove off.
Hack
I hope she didn't think I was a stalker. :)
BTW, I did yell "Roll Tide" to her - she smiled.
Hack
Nice comparison's Hack.
Thanks, pelle.
I read on Mrs_Ed's camera thread that you use a Sigma 50-500 lens with your 40D. I've been looking at several on ebay to use with my 40D. What is your opinion of the lens?
Thanks
Hack
Replied to your Dmail. :-)
Thanks Pelle, got it.
Hack
