380ex useful indoors?

[legnum]

Dear all,

i will be shooting indoor photo in the Hong Kong Convention and exhibition centre.But i am not sure if my 380ex with 28-80 3.5-5.6 lens is 'enough' to expose an iso 100 film.(without using bounce or diffuser).The equipment are of coz in good condition

I am actually asking those who had been shooting there.

Any experience given to me will be appreciated.Thanks.

[sajeev_chacko]

i doubt its sufficient for the situation you mentioned. i have shot

under such conditions using EOS 300 + EF 28-135mm IS USM + 380EX.

since i had an IS lens, the effective X-synx of the body turned out to

be 1/350 sec. and ofcourse, this lens is much superior to what you

mentioned. although i was not much disappointed, i was not much happy

either with some of the shots. i haven't enlarged any. but i think i

should be able to get some descent enlargements to certain extend. but

a 4x6" should be quite good enough. well, i am talking about sharpness

with the 28-135mm lens. secondly, i was shooting from very close

distance, just a few feets away from my subject. i doubt about

equipments. others who has more experience in this regards can help

you better. but i thought i can atleast discuss my experience with

you.

[jimstrutz]

Sajeev is incorrect to imply that the IS lens will effect his top

sync speed in any way. The IS feature will effect hand holding but

has no effect on flash.

 

<p>

 

The 380EX has a guide number of 33 in meters with the flash head

zoomed to the 70/80 position. So when shooting at f/5.6 with 100

ISO film your maximum distance is about 6 meters, if you use the 80mm

end of your zoom. If you use the 28mm end of your zoom, you have a

GN of 23, but at f/3.5 you end up with about the same maximum

distance. So for shots of subjects less than 6 meters (about 19

feet) you should have enough flash as long as you keep your lens wide

open.

 

<p>

 

I'd use 400 ISO film to extend the flash range to 12 meters.