I see many journalists use external power pack for their flash. What is the merit using it? What is 'FP' flash mode? Why can't i turn the lens to the 28mm mark in my 28-80mm lens? Can anyone comment on the 28-200mm lens and compare it with other similar lens like sigma's and tamron's?

-- tokamak (sir-tokamak@hongkong.com), May 06, 2001

Answers

Not only do journalists use external battery packs, but so do wedding photographers and in general, anyone who doesn't want regular batteries to fail when shooting. imagine a battery that would pay for itself (by not having to buy AA batteries) in about 2 years. Or less if you shoot flash a lot. Also, they enable a faster recycle time for any situation. As short as .5 seconds or as long as about 2.5 for a full power burst.

FP mode is "Focal Plane" mode. It is a system where the maximum sync speed is increased by the flash emitting several bursts of light to match vertical travel of the camera's shutter. For more info click here and head for the flash FAQ. The info is invaluable.

You can't turn the zoom ring beyond 28mm because that is it's limit!

On this forum, you would find it difficult to get a response from anyone recommending a 28-200 lens by any manufacturer. We really don't like them. They are almost always of inferior build quality and inferior optics. Get 2 zoom lenses to cover that range. A 28-105 and a 100- 300. Plus you'll have the other 100mm.

-- Colin Miller (ckmiller@pond.net), May 07, 2001.

I misread the question Re: turning the lens to 28mm. You may have some dirt in the focus ring or any number of problems. Find a Canon repair center near your city, and get a repair estimate.

-- Colin Miller (ckmiller@pond.net), May 07, 2001.