Got out on Monday 1 July to give the GR a more in-depth test. As I wrote in my last post, I’ve been experimenting with the settings to find the best combination for my street shots, as some of my first shots were marred by slow shutter speeds.
I also said in the last post that I had set the ISO at auto-high, with a max of 1600. With the F-setting at 2.8, I thought this would give me a fast enough shutter speed for the pictures to be sharp.
I failed to realise that, even with the ISO set on auto-high, the GR will always use the lowest ISO when metering the shot. This means that in good light ISO will revert to the lowest setting — 100. Most shots taken at this ISO with an aperture of 2.8 will use a shutter speed of 1/500 - 1/750.
You might think this would be adequate enough to ensure an perfectly sharp picture. Alas, it ain’t necessarily so. You see, I invariably take most of my shots at a slow walk. If the subject is also on the move — i.e, walking towards me — a shutter speed of 1/750 is often not fast enough.
As a result, at F2.8, I now alter the ISO setting to between 200 and 400. This should make sure the shutter speed is around 1/1000 or above.
I’m glad to say most of the ‘keepers’ on my recent photo walk are fairly sharp, but there were one or two instances where the shot would have been better if a faster shutter speed had been used.
By the way, I’m very impressed with the GR’s IQ — in several shots I was able to crop a fair bit without any noticeable effect on picture quality. The following pictures allow you to judge for yourself:
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| Whip hand |
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| The graduate |
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| Walter Scott Monument |
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| Cityscape |
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| Best foot forward |
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| Keeping an eye out ... |
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| Canine contretemps ... |
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