On 9 Nov 2005 at 11:18, Rob Smith wrote:

> Folks who have used R-CRV3 batteries in their cameras seem pleased with 
> them. Advantages claimed are:
> a) Faster autofocus, sometimes significantly faster. This seems plausible if 
> the
> batteries are operating at higher voltage, the flip side is that the autofocus
> mehanics will be stressed a bit more

Rose coloured glasses I bet and a combination of never having used a properly 
charged Ni-MH cell. If the battery voltage is regulated (I expect that it has 
to be for an L-ion cell) to be the same as a conventional cell there will be no 
reason why any motors may run faster or provide greater torque. In fact with a 
regulator device in series I'd expect performance would be poorer than a Ni-MH 
cell as the instantaneous peak current would likely be reduced.

> My current view is that good quality high capacity NiMh batteries and 
> charger are the current best and safest options for most usage 
> patterns -ntil the Sanyo low discharge batteries come on the market you just
> need to remember to top them up every couple of weeks before use. If you use
> autofocus with big heavy lenses a lot it may be worth experimenting with 
> R-CRV3
> batteries, I am tempted myself although I don't have that autofocus need - we
> all like new toys :-)

I say put your cash away for a couple of sets of the long life Ni-MH cell, they 
should be great (or buy yourself a neat La Crosse BC-900 charger, that's a 
great toy).

Cheers,


Rob Studdert
HURSTVILLE AUSTRALIA
Tel +61-2-9554-4110
UTC(GMT)  +10 Hours
[EMAIL PROTECTED]
http://members.ozemail.com.au/~distudio/publications/
Pentax user since 1986, PDMLer since 1998

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