Quote:
Originally Posted by Simon.b
Thankyou all once again, I have heard of grays so will check their website, loved the hoverfly picture don, was it taken with the recent 105mm vr? and would you know if to get right in/sharp on a flower and its workings if it would require a tele converter? I have tried with my current lens/manual&auto focus/results before&after cropping are still nothing like that fly!
ATB
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The 105mm macro focuses down to 1/1 (lifesize) so is more than capable of filling the frame with the centre of a flower. If you're going to work at that sort of magnification then autofocus is a bane rather than a bonus and is better switched off. You will most likely be working from a solid heavy duty tripod with everything clamped down tight, where critical focussing and very small apertures are a must, in these sorts of situations VR is useless at best or doesn't work at all. Where VR would come into it's own is if you are chasing subjects such as butterflies etc, handheld; here again autofocus is an hinderance rather than an aid. Far better to prefocus at a certain distance from your subject then sway gently backwards and forwards with the camera and lens until the subject is sharp in the frame, this is where the longer macro lens comes in, you don't need to be so close to your subject which means you are less likely to scare it away.
To give you some idea of image size to lens magnification here's a shot of Scottish Primrose -
Primula Scotica, taken on a Tamron 90mm macro at slightly less than 1/2 life size. The flower is approx 2" (5.0cm) tall.
nirofo.