I hear you. Yes, it's time for another lens but actually much of the
shooting was in rather dark conditions. This is not the wide open San
Diego Zoo but a hilly and heavily forested zoo in upstate New York.
Most of what was of interest was in deep shade or indoors in even darker
conditions. I should have been shooting at ISO 1600 and 3200 but
wasn't. I started at 400, moved to 800 but didn't move far enough.
The only decent snap of the day was gotten while wandering out under
some trees that had died and catching this shot with a very nice cloud.
<http://www.chucknorcutt.com/temp/tree_with_cloud.jpg>
Chuck Norcutt
Moose wrote:
> 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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