Taliesin
Final Assembly Line stage 1
In Thrust we trust
Posts: 228
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Post by Taliesin on Jul 27, 2015 12:06:45 GMT 1
Blur is frequently an issue in some of my zoomed in shots. What material are you using? Do you have an example for one of those blurred shots? As an aside, you seem to know your arthropods as well as your planes! Thanks, some I know by heart by now, others I have to google. It's part of the fun
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Baroque
in service - 2 years
Posts: 3,991
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Post by Baroque on Jul 28, 2015 17:06:34 GMT 1
What material are you using? Do you have an example for one of those blurred shots? As an example, here's an unedited full sized image of a BA 77E on its climb out of LHR. Not as sharp as I would have liked it to be. British Airways Boeing 777-200ER by My Flickr, on Flickr Other info: ISO 100, f/5.0, 1/160. Camera type: Canon SX40-HS (bridge camera type, shot in manual mode with RAW capability).
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Taliesin
Final Assembly Line stage 1
In Thrust we trust
Posts: 228
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Post by Taliesin on Jul 28, 2015 17:44:26 GMT 1
Other info: ISO 100, f/5.0, 1/160. Well, at 1/160th of a second, long ranged shots are going to be blurry. The EXIFs say you were at 85mm focal range. That's not a lot, but I suppose the Canon SX40-HS has a smaller sensor, thus higher crop factor and effective focal length? My Olympus makes 600mm out of its 300mm lens, so I'm guessing your Canon is about the same. What I would do is find out at which aperture your camera works best, but for a start try F8. Then either use Aperture priority and see how you have to set up your light metering to get the exposure right, or set to Manual and force it to a certain shutter speed, let's say 1/800th. Increase ISO accordingly and see where that gets you
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Baroque
in service - 2 years
Posts: 3,991
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Post by Baroque on Jul 30, 2015 0:11:22 GMT 1
The EXIFs say you were at 85mm focal range. That's not a lot, but I suppose the Canon SX40-HS has a smaller sensor, thus higher crop factor and effective focal length? My Olympus makes 600mm out of its 300mm lens, so I'm guessing your Canon is about the same. Perhaps this might be of a little more help. The lens says 4.3-150.5mm and the 35mm equivalent of 24-840mm. The sensor is indeed quite small since it is a point and shoot camera type.
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Taliesin
Final Assembly Line stage 1
In Thrust we trust
Posts: 228
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Post by Taliesin on Jul 30, 2015 0:52:22 GMT 1
Wow, your camera has a crop factor of not 1,6 or 2, but 5,58. That means your 85mm were equivalent to 475mm. No wonder it was blurry at only 1/160s exposure.
Point and shoot cameras aren't necessarily bad cameras, you can do a lot with a camera if you know how to use it. I would stick with Aperture Priority (A or Av Mode) and go from there. You have a lot of focal length to play with, this could be useful, but could also be a little deceiving, because it's very hard to handle. Setting your camera to A Mode has the benefit that you have only 2 variables to play with: Your metering and ISO. My camera tends to overexpose pictures, or at least airplane pictures, so I usually have it set to -0,7EV, or 2/3 of a step of underexposure. Aim for shutter speeds of around 1/800s and adjust your ISO. Don't be afraid to go to ISO800 if needed. Like I said, you can always denoise, but never deblurr. If your picture turns out sharp, but too noisy, then at least you know the light conditions didn't allow for a better picture.
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