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How To Get Prop Arc?  
User currently offlineWakeTurbulence From United States of America, joined Apr 2004, 1294 posts, RR: 16
Posted (9 years 5 months 2 weeks 3 days 2 hours ago) and read 4060 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.

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Photo © Andy Vanderheyden


Thanks for any help in advance.
-Matt


Jetwash Images - Feel the Heat!!!
10 replies: All unread, jump to last
 
User currently offlineLHSebi From Germany, joined Jan 2004, 1049 posts, RR: 8
Reply 1, posted (9 years 5 months 2 weeks 3 days 2 hours ago) and read 4047 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.
User currently offlineUSAir_757 From United States of America, joined Jun 2000, 996 posts, RR: 8
Reply 2, posted (9 years 5 months 2 weeks 3 days 2 hours ago) and read 4047 times:

Tighter aperture, slower shutter speed. Only way.


-Cullen Wassell @ MLI | Pentax K5 + DA18-55WR + Sigma 70-300 DL Macro Super
User currently offlineAnder From Spain, joined Jan 2005, 367 posts, RR: 21
Reply 3, posted (9 years 5 months 2 weeks 3 days 1 hour ago) and read 4017 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



Born to tri.
User currently offlineTZ From United Kingdom, joined Mar 2003, 1085 posts, RR: 52
Reply 4, posted (9 years 5 months 2 weeks 3 days 1 hour ago) and read 4020 times:
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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.

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Photo © TZ Aviation


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
User currently offlineINNflight From Switzerland, joined Apr 2004, 3766 posts, RR: 59
Reply 5, posted (9 years 5 months 2 weeks 3 days ago) and read 3990 times:

As said before... a long shutter speed, like 1/80 and below is required for full spins.

The best thing you can do is to practise, and also make sure your sensor is clean... at high f-stops really ALL your dustspots will become visible!  knockout 

As written in the comment field, this one was taken with 1/50 to get the full spin.

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Photo © Florian Trojer - TCAS




Jet Visuals
User currently offlineDC10Tim From United Kingdom, joined Jan 2005, 1406 posts, RR: 14
Reply 6, posted (9 years 5 months 2 weeks 2 days 23 hours ago) and read 3967 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.

Regards,

Tim.



Obviously missing something....
User currently offlineWakeTurbulence From United States of America, joined Apr 2004, 1294 posts, RR: 16
Reply 7, posted (9 years 5 months 2 weeks 2 days 16 hours ago) and read 3909 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



Jetwash Images - Feel the Heat!!!
User currently offlineDC10Tim From United Kingdom, joined Jan 2005, 1406 posts, RR: 14
Reply 8, posted (9 years 5 months 2 weeks 2 days 15 hours ago) and read 3884 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.

[Edited 2005-04-03 11:48:04]


Obviously missing something....
User currently offlineJAT74L From United Kingdom, joined May 2004, 618 posts, RR: 14
Reply 9, posted (9 years 5 months 2 weeks 2 days 15 hours ago) and read 3880 times:

I got full spin at 160th...


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Photo © John Thompson



Regards

John



I like trains just as much as planes but trains don't like the Atlantic!
User currently offlineIL76 From Netherlands, joined Jan 2004, 2237 posts, RR: 48
Reply 10, posted (9 years 5 months 2 weeks 2 days 14 hours ago) and read 3880 times:

Whenever a I see a prop approach, I switch from Av to Tv-menu, set at 1/125s. Unless it's a very rare aircraft and I can't afford to &%$-up.  Smile

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Photo © Eduard Brantjes
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Photo © Eduard Brantjes


Cheers,
Eduard


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