WakeTurbulence From United States of America, joined Apr 2004, 1288 posts, RR: 18 Posted (8 years 1 month 2 weeks 3 days 19 hours ago) and read 2361 times:
Ok, I searched with no hits in the photog forum. My question involves how to get good prop arc. For an easy example take a look at this picture. http://img149.exs.cx/my.php?loc=img149&image=mattwn55958331054cn.jpg
For this pic I used a high shutter speed and high aperture, I came out fine but with not with a full prop which is understandable. On the next pic of the same a/c when I slowed the shutter to 1/30 sec. the picture came out like I was looking at the sun, almost completely yellow. How can I fix this? I'd like my prop pics to come out more like this.
LHSebi From Germany, joined Jan 2004, 1049 posts, RR: 9 Reply 1, posted (8 years 1 month 2 weeks 3 days 19 hours ago) and read 2348 times:
Hi Matt,
Well, the pic you linked to there obviously has too high a shutter speed, so the props seem frozen. Your idea to lower the shutter speed was the correct one. What camera are you using? It seems as though when you dropped the shutter speed, you didn't compensate with a raising of the aperture! If you're going to let more light onto the sensor/film through a longer shutter opening, you had better decrease the amount of light that can hit the sensor at once by raising the f-stop value! Normally the camera should automatically decide on an apropriate f-stop value for the shutter speed you selected, but maybe you had it on completely manual mode?
Hope that helps,
Sebastian
I guess that's what happens in the end, you start thinking about the beginning.
USAir_757 From United States of America, joined Jun 2000, 994 posts, RR: 9 Reply 2, posted (8 years 1 month 2 weeks 3 days 19 hours ago) and read 2348 times:
Tighter aperture, slower shutter speed. Only way.
-Cullen Wassell @ MSL | Pentax *istDL, Sigma 28-80 AL DG Macro II, Sigma 70-300 DG Macro
Ander From Spain, joined Jan 2005, 367 posts, RR: 24 Reply 3, posted (8 years 1 month 2 weeks 3 days 18 hours ago) and read 2318 times:
Hi Matt
I'll give you an example of one of mine (sorry for self plugging) http://www.airliners.net/open.file?id=794484
This was shot hand held (a good tripod is convenient)
Exp 1/60, F14 (set by the camera) ISO 100.
Very carefully follow the object (if it is moving) and hold the camera very steady. If there is too much light consider exposure compensation or even a neutral density filter.
And most important, keep practicing.
Good luck,
Ander
TZ From United Kingdom, joined Mar 2003, 1085 posts, RR: 54 Reply 4, posted (8 years 1 month 2 weeks 3 days 18 hours ago) and read 2321 times:
When it's bright and sunny, it's tough to get a long enough exposure to get a full prop rotation. This required 1/30th at f25, which is as far as the lens would go. If it were any brighter I'd have been stuck.
The only thing to try once you've run out of f-stop is to add a neutral-density filter or two. That creates a cool effect... you can wind up with a 1/3sec exposure on a sunny July day!
Tamsin
TZ Aviation - Aeropuerto de los Banditos Team Images
DC10Tim From United Kingdom, joined Jan 2005, 1405 posts, RR: 16 Reply 6, posted (8 years 1 month 2 weeks 3 days 16 hours ago) and read 2268 times:
Wow!
Some of those shots are excellent. I must confess, I've never had a shot with the full rotation of the propellers like that.
Generally though, in good light I have found it necessary to drop below 1/200 to create the impression of some blur, or else the propellers appear frozen.
WakeTurbulence From United States of America, joined Apr 2004, 1288 posts, RR: 18 Reply 7, posted (8 years 1 month 2 weeks 3 days 9 hours ago) and read 2210 times:
Thanks for all the help guys! I am worried that with my current camera, an Olympus C-765, I might not be able to get a high enough f-number. I think my lens only goes up to f/8 or f/9, and you guys are talking about f/14 and f/22. I guess I will have to practice some more, hopefully it works out. Thanks again.
-Matt
DC10Tim From United Kingdom, joined Jan 2005, 1405 posts, RR: 16 Reply 8, posted (8 years 1 month 2 weeks 3 days 7 hours ago) and read 2185 times:
Matt,
f9 will be fine. I used to shoot with an Olympus C750. You also have the ability to drop down to ISO 50, which will enable you to further reduce the shutter speed.
Tim.
EDIT: I've just had a look at the C750 I used to have. My mother has it now. It looks as though the smallest aperture is f8, but you still shouldn't have any problems.
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