Canon 70-200 F/4L USM

[PeterP]

I think we need helium filled lenses that just float along :!:Or Hydrogen filled ones for those more explosive situations :blah:.

Peter.

[Humrme]

I used the Canon 1.4 extender on this lens with excellent results. As for the tripod collar, it's optional because the lens only weight 1.5 lbs. You don't need a tripod collar for that weight. I had no problem using the camera mount. There are many many lenses weighing as much that don't offer even an optional tripod collar.

[[email protected]]

Thats pretty cool using the tele extender.

Gives you a 35mm equivalent of about a 400mm f/4 lens!

-- Terry

[NHL]

[email protected] wrote:

Thats pretty cool using the tele extender.
Gives you a 35mm equivalent of about a 400mm f/4 lens!

What kind of 'fuzzy' math is this???

[PeterP]

The Equivalence Factor :!except for the F4 part that ups to F5.6)

200mm(real)*1.4(tc)*1.6(crop) = 448mm(virtual).

IMHO: This thinking/converting everything to full-frame 35mm termshas got to stop.

:blah:Time to start a new anti-35mm equivalence movement :blah:

Peter.

[NHL]

PeterP wrote:

(except for the F4 part that ups to F5.6)

Exactly: 'just' 1/2 the light! :idea:

[PeterP]

Or did you mean 'just' 1/2 the right. :blah::blah::blah:

:cart: This could easily be compensated for by simply increasing the light output of the sun. :idea: DOH :homey: Never mind.

Peter.

[NHL]

Or made worse by a polarizer! :idea:
... which can tune out the reflection from the windshield of that Benz for example :blah: :blah: :blah:
-> but it'll cost you @ least another 2-stops

[jalexman]

Hi you guys might want to read this review at http://www.eospix.com/reviews-14.html

They've reviewed the EF 70-200 f4Land the kenko 1.4x

[[email protected]]

Okay, here's another example of what the F/4 can do: