siejones
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I was out Sunday taking some pics of Pistyll Rhaeadr. A stunning waterfall near Snowdonia.
In the daytime light I had to stop down to get my shutter speed down to give that smooth flowing water common with this type of photo.
I am aware of how diffraction works and know that some lenses deal with it better than others by maybe a stop of aperture. I am using a canon17-40L which is pretty standard in it's diffraction fall off.
Anyway to get a decent slow shutter speed I was stopping down to F22 which I knew was bad for diffraction but all I could do to slow it down enough. Besides I have noticed many waterfall shots in the past using this aperture and presumed it was a pretty standard thing to do. It also caters for the great depth of field needed for shots taken in such close proximity as waterfall shots demand and therefore right across the focus range of the camera.
Anyway when home and having a quick look at the pics I find myself dissapointed. I knew the focus wouldn't be sharp but the diffraction level made unacceptably soft images. I was using tripod and remote. I am pretty confident of no camera shake and certainly not for all 20 odd shots.
I am using a 350D and I realise this is only a small sensor in terms of DSLR's and with bigger to FF sensors that diffration at these apertures is dealt with a lot better due to the bigger pixel area.
So my quesiton is what do you guys use for waterfall shots of this nature. Do you:
- Stop down the aperture and accept the poor IQ?
- Wait till it's dusk or dawn and therefore dark enough to not have to stop down quite as much?
- Use ND filters to knock the light down a few stops again not having to stop down so much?
- Have a shiny FF and not worry so much or do you still suffer to a certain degree even with the larger sensor?
Ta
Sie
In the daytime light I had to stop down to get my shutter speed down to give that smooth flowing water common with this type of photo.
I am aware of how diffraction works and know that some lenses deal with it better than others by maybe a stop of aperture. I am using a canon17-40L which is pretty standard in it's diffraction fall off.
Anyway to get a decent slow shutter speed I was stopping down to F22 which I knew was bad for diffraction but all I could do to slow it down enough. Besides I have noticed many waterfall shots in the past using this aperture and presumed it was a pretty standard thing to do. It also caters for the great depth of field needed for shots taken in such close proximity as waterfall shots demand and therefore right across the focus range of the camera.
Anyway when home and having a quick look at the pics I find myself dissapointed. I knew the focus wouldn't be sharp but the diffraction level made unacceptably soft images. I was using tripod and remote. I am pretty confident of no camera shake and certainly not for all 20 odd shots.
I am using a 350D and I realise this is only a small sensor in terms of DSLR's and with bigger to FF sensors that diffration at these apertures is dealt with a lot better due to the bigger pixel area.
So my quesiton is what do you guys use for waterfall shots of this nature. Do you:
- Stop down the aperture and accept the poor IQ?
- Wait till it's dusk or dawn and therefore dark enough to not have to stop down quite as much?
- Use ND filters to knock the light down a few stops again not having to stop down so much?
- Have a shiny FF and not worry so much or do you still suffer to a certain degree even with the larger sensor?
Ta
Sie
Makes perfect sence. Really want to try this out now.
