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HelicopterAerial Photography and Video › Oops. Best discoverys by accident?
07-13-2008 10:27 PM  9 years agoPost 1
FLAP

rrKey Veteran

Michigan

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had a couple of jobs to do today. Each required a couple of 'hops' to get the required shots. I have always routinely selected shutter priority anything from 1/500 for slightly overcase to 1/640 or 1/800 for a brighter day (ISO 200).
On my second hop of my second job, I accidently set the camera in aperture priority...and accidently locked in at 6.3 aperture. (all on a 20mm prime 2.8)
With this setup, a little too open, the shutter speeds were a bit too fast, about 1/2000 and down as low as 1/500. But, the photos were all very good. (25-30 mph winds)
I'm thinking, at least for bright days, aperture priority might be the way to go.
Any opinions?

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07-13-2008 10:54 PM  9 years agoPost 2
CKY

rrVeteran

Sunshine Coast, BC,​Canada

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I like Aperture priority, Stopped down to about f8 or f11 and ISO 200 you should still have a very decent shutter speed.

1/1000th for f8 and 1/500th for f11, assuming you have an EV of 15 (bright sun).

Usually a sweet spot for the lens, plus a better depth of field.

A very good exposure guide can be had at...

Chart

Scroll down to the "Exposure value chart" and lower for some really good info.

Really good info for doing panoramas where you may want to go full manual for a constant exposure for all frames. Makes stitching and blending easier. You can batch the raws with the same settings to fine tune final jpgs for processing.

When shooting over water etc. exposures can be finnicky. Locking onto a focus and exposure will fail at times with AF/AE.

Chris,

PS...I always use manual focus now, really reduces mucked frames

PPS...Almost all heli work will be in the 14 to 15 EV range

13 if you like 'heavy clouds'

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07-13-2008 11:34 PM  9 years agoPost 3
rroback

rrElite Veteran

Irvine (UCI), Ca

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I always shoot aperture priority, or manual.

Rhett..... I can't fly, but the Profi sure can.

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07-14-2008 02:30 AM  9 years agoPost 4
mwp

rrApprentice

Chatham, Ontario,​Canada

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CKY - Thanks for the Fred Parker link.

An interesting read.

Mark

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07-14-2008 03:02 AM  9 years agoPost 5
FLAP

rrKey Veteran

Michigan

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CKY, good stuff, thanks for posting. I printing off those chart and taping them to my transmitter case. I'm give aperture priority a try for awhile.

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07-14-2008 03:23 PM  9 years agoPost 6
meflyjeep

rrApprentice

On the ground and in​the air ...

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I prefer aperture priority on all but the lowest light levels. It allows me - when shooting other than super WA - to maintain the depth of field that I want in the shot ...

meflyjeep

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07-14-2008 05:47 PM  9 years agoPost 7
FLAP

rrKey Veteran

Michigan

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I guess I had been using shutter priority because I wanted to ensure 1/500 or faster on the shutter But on most sunny days, using aperture priority isn't a problem. I only have the one flight to go off, but there certainly wasn't anything wrong with the 1/2000 photos (like I said, the aperture was inadvertently set to 6.3...probably a little too open from where it should have been).
Everything is a compromise I guess. I'm sure there is probably a reason that sort of shutter speed is too fast, but I'm not knowledgable enough to know what it would be.

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