Chuck Norcutt wrote:
> Nope, no booster pack. I've never needed one and that would be a double
> killer. The Tokina is 1,350 grams or 0.4 ounces short of 3 pounds. The
> hood and filter (which I hadn't realized was installed) add another 190
> grams or 6.7 ounces. The Kenko 1.5X is a relative flyweight and adds
> only another 110 grams or 3.9 ounces. The body with battery and CF card
> is another 898 grams or 31.7 ounces. The grand total is 2548 grams or
> 5.6 pounds with the body supplying not much more than 1/3 of the total.
A valid answer might be, don't carry it for that use. You bought Big
Bertha for speed in low light. How much of the zoo shooting was in low
light?
You also bought the 5D partially for low noise at higher isos. What
aperture, shutter speed and iso were you using?
At an effective fl of 280 mm, the rule of thumb says 1/300, so lets say
1/500. Sunny 16 says f16 @ 1/500 for iso 500 so at f4 with the
teleconverter, the lens is two stops faster than you need.
Go to iso 800 and f8 and your shutter speed goes up to 1/1600, lots of
extra insurance against camera and subject movement. And iso 800 on the
5D is more than fine.
So a long lens that's slower but lighter would be a better fit for the
assignment.
Also, I know you love the solid, all metal construction of the Tokina
AT-X Pro lenses, but that does mean that they are bigger and heavier
than those using other constructions methods and materials.
The 5D with Tamron 28-300mm f/3.5-6.3 XR Di LD Aspherical IF (More
letters don't weigh anything!) hood, cap, battery, CF card, strap and
hand grip weighs 1420 g or 3# 2 oz., just over half your total.
I know from multiple shooting excursions that I can comfortably carry
this combo by neck strap and/or in my hand with the hand grip for many
hours. And given the same shutter speed and fl, I believe that it is
easier to hold a 3# camera/lens steady than a 6# one.
A lens I can't carry or hold steady is little better than one left home.
That's why I dither so much about the C 100-400/4.5-5.6L IS, which
weighs the same as the Tokina 80-200/2.8. I want the extra reach and IS,
but would I actually carry it around? At least it holds itself steady. :-)
Moose
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