With the right combination of ISO, aperture and shutter speed (using a depth of field chart) you can definitely get the whole flower in focus. This is how we used to do this all the time in the days where cameras did not have autofocus (and did have DoF markings on the lens barrel).
I think the technique is sometimes referred to as "zone focusing".
Nice image
Nice composition. Loveled it.
Nice shot.
Hi Manfred,
Brian's Sony kit lens only has the "18-55" zoom scale - no focus scale is provided on his lens (I just checked some photos of it).
This means he's reliant on choosing different parts of the rose to focus on, using AF - and trying to ensure all depths are covered, before stacking.
In the shot above; near and far petals are sharp, but there are some between those two extremes that are not, which, from his comments, I assume he might have shot, but they were moved too far within the frame for the stacking to cope with (due to the wind).
Have I got that near enough correct Brian?
I really like the warm light on the rose Brian, beautiful image
Thanks Dave - I just had a look at my Panasonic Lumix lenses and they seem to be missing this feature as well. My wife's Nikon lens has it. Strange that the lens makers would omit such an important tool, but I guess they must figure no one is going to use anything other than autofocus.
I'm terrible at estimating distances, so I would make some test shots using manual focus and Live View with the image magnified to 100% in the LCD display. Once I know the aperture setting that would produce the required depth of field, I would then take multiple images because of the wind and perhaps changing light.
Focus stacking doesn't seem to be a reasonable method considering that the wind was blowing the subject.
Last edited by Mike Buckley; 6th March 2016 at 05:45 PM.
Indeed, it seems to be a fairly common omission, especially on the wider angle kit lenses - in fact even my Nikon 35mm/f/1.8 prime doesn't have one (all my other lenses do), but that's also renowned for being a 'value' lens.
I guess with the short 'throw' (angular rotation) of AF lenses, the scale becomes so cramped as to be almost useless anyway - shame.
Brian, I wondered, perhaps a focus rail would be a useful addition to your tripod head for stacking shot series?
This would allow you to:
a) Focus on the closest petal and switch to MF (and do not adjust focus on lens)
b) Shoot first 'layer'
c) Creep the camera and lens forward a bit
d) Shoot second 'layer'
e) Repeat c) and d) as many times as necessary to reach the 'far side' you need sharp
Knowing how much to 'creep the lens forward' would take some calculation and practice to begin with, as would framing.
I haven't tried this technique, although I do have a cheap focus rail, I've not done much Macro since buying it.
Cheers, Dave