View Full Version : Macro in a Sigma Zoom Lens
04-04-2007, 01:15 PM
Forgive my ignorance, but I have aquired a Sigma 28-300mm D MACRO lens.
May seem a stupid question - but how does one 'access' the macro function.
I can find no button, or switch, and there are no settings in the camera.
Looking through and trying the lens, logically, gives no clues that I can obviously see !
04-05-2007, 10:21 AM
Hi Y. Geoff,
You don't have to apologise!
I did some research on this lens this morning, and can't find much about the "macro mechanism" as Sigma referred to it.
I'm going to guess the outter ring furthest away from the camera???
Sigma didn't have a specific users manual posted on their website for this lens, which you probably have already discovered.
I'll run this by someone who may know more about it and get back with this thread.
04-05-2007, 11:06 AM
May thanks for the reply.
There does not appear to be any 'outer ring'.
The manual states nothing, but the promotional info suggests a 'mechanism' - though it does appear this lens is a little "old" - and as such no longer specified on their website.
I shal'n't be using it during the Easter break - but the lack of anything obvious is beginning to 'bug' me.
I wonder if this is what one could call a "psuedo" macro - in the sense that it allows focusing as close as 0.5M!?
04-05-2007, 03:39 PM
Hi Y. Geoff,
Ok..I asked and he said
"its only at a certain focal length that its macro...likely fully extended;
it probably doesnt have a switch or anything"
If that's the case, the term "macro-mechanism" is odd, isn't it?
I would suggest just put it on the camera and run some test shots with it.
Good luck and please post any new info you may pick up on this.
Geoff...you are correct...I am pretty sure its a Tele-Macro...the .5 meter allows you to get close to stuff like butterflies and skittish insects and animals.
04-05-2007, 06:42 PM
from what I could work out, from one bit of reading, it comes into being at full zoom .... does that sounds right?
04-15-2007, 11:32 PM
it comes from being at full zoom, but generally those lenses are really psuedo macro lenses, thus, they don't allow 1:1 images, generally 1:2, 1:3 or 1:4 sizes instead
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