The "Post your pictures here" thread.

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Took a photo of london skyline tonight, i think its ok but have a few questions:

1)Its a bit too yellow for me, should i have set the WB to tungsten before taking the photo?

2)The sharpness is not great, but i was only using the canon IS 17-55 kit lense

3)why does a photo using aperture control come out brighter at f11 than f22 when the shutter speed is the same 30"?

4)in the below picture where should be my focus point, i was trying to make it the houses at the front, as a f11 or f22 should bring everything into focus to infinity?

thanks

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nukemdukem said:
Took a photo of london skyline tonight, i think its ok but have a few questions:

1)Its a bit too yellow for me, should i have set the WB to tungsten before taking the photo?
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Personally I ignore the white balance entirely on camera (almost always) - If you shoot RAW you can fix it later without losing anything. If you're using jpeg then you would have to at least consider it in advance as you will lose information in the image adjusting it later on.

2)The sharpness is not great, but i was only using the canon IS 17-55 kit lense
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That's not a question :P

It could be at least in part to do with the lens - but the 17-55 IS is pretty well regarded - possibly you mean the 18-55 IS which does look to be a bit softer in general. It's difficult to tell from that size image. It could be that the tripod isn't stable. If you don't already, you should try a shutter release or self timer to make sure you don't pick up movement when you press the shutter. And also mirror lockup so that you can lock the mirror up before releasing the shutter to reduce vibrations (not sure how much of an effect this has on a 30s exposure though as it will be more noticable on a shorter exposure).
Also if it was f/22 there might be diffraction causing softness (very small apertures diffract the light onto the sensor or something. On a crop body I think this starts around f/11 and ramps up from there).

Overall the sharpness looks perfectly acceptable for the size you've reproduced it on the web page - the way it's used is normally the determining factor for whether something is "too soft" and is more important than 'pixel peeping' as it's known.

3)why does a photo using aperture control come out brighter at f11 than f22 when the shutter speed is the same 30"?
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f/22 is a narrower aperture than f/11. So much less light gets into the camera. More exactly, f/22 lets in two stops less light. Each stop less means half the amount of light, so f/11 lets in 4x the light of f/22. This means you'd need a shutter speed of 120 seconds to get the same exposure at f/22

4)in the below picture where should be my focus point, i was trying to make it the houses at the front, as a f11 or f22 should bring everything into focus to infinity?
Click to expand...

I would probably say the same place. at f/11 I guess everything would in that frame would probably be in focus anyway. Look up the hyperfocal distance as that's relevant (it defines the point you have to focus at a given aperture for everything from x metres to infinity to be in focus).

Nice shot btw
 
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zogger thanks for the feedback :)

i took some more tonight, still not as sharp as i want - maybe its not possible with my lens/camera - but i want crystal clear sharpness....

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Canon IS 18-55 kit lens, Canon EOS 550D
ISO 100
Exposure time 30 secs
Shutter speed 30 secs
F-Stop F/11
Apeture F/11
Focal length 34mm

Thanks
 
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Not a bad effort Nuke, you also my want to try taking a peice of card with you on your long exposure shoots, just place the card infront of the lens when you press the shutter so, no/very little light gets in, then just move it away and finish your exposure.

This just makes sure there is no shake when you press the shutter ;)

Hope that makes sense :D
 
its the IS version, using a tripod, but its a little bit windy, so might be causing some minor vibration that i cant see - i took 3 photos at -2,0 and +2 exposure, hoping to combine them, but when i did they were quite blurred, this means the position must have changed very slightly even tho i did not move the tripod....

will give the piece of cardboard trick a go and see what happens :)
 
Mickor, your shots look amazing by the way although I'd say they look slightly overdone processing-wise, unless you are going for the exaggerated look (if that makes sense). WOuld love to try myself.
 
I LOVE the overdone look, less reality and more art.

The world has a camera to portrait reality... one extra isn't needed.

Different strokes for different folks!
 
Trying something a little different on a photo from a complete disaster of a shoot with Helen. Kind of going for a moody, slightly horror film like look. I don't know, was fun to just mess around with it really.

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Different crop

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