600mm f4 for wimps

Started Dec 16, 2005 | Discussions thread
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panama jack Forum Member • Posts: 72
600mm f4 for wimps

B&H just delivered my christmas present! 600mm f4. The box looked small? The case looked small? The weight was small. Did they send me the wrong lense? When I opened the case there it was. It's sharp, it's white and it's hand shootable. It's Canon's one and only 600mm f4 lense.

Now why did I address this thread as 600mm f4 for wimps? For me this puppy is nothing in comparision from what I have been shooting with for years. 800mm & 500mm 6x7 pentax. Manual focus, manual exposure and when you slap a 6x7 trans on an ad execs light table. well, there isn't anything that will replace it (can't wait for the pentax med format digital) Now these are manly man lenses. Probably in a few months I will be complaining about how heavy the 600 is.

Now that I've got the wimps attention the real questions:

I haven't read anything about extension tubes with the 600. Any deteriotion of image?

I haven't read anything about extension tubes with 1.4 extender?

Should the extender be before or after the extension tubes?

How much will the 1.4 extender deteriote the image.

1.4 extender + 1.4 extender vs 2x extender.

Thanks for your input!

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