PENTAX DFA 100mm f2.8 MACRO

royd63uk
Posted 05/05/2010 - 08:24 Link
Might be a silly question,but i am going to get a macro lens soon and it is between this lens and the tamron 90mm di.
I would probably go for the pentax except that it does not have a focus limiter.Does the focus clamp work in the same way?

also reviewers say the tamron is much sharper wide open,whats it like in the real world?

roy
regards
Roy

Pentax K3 gripped,and some lenses
https://www.flickr.com/photos/pentaxroy/

my pbase gallery
Mannesty
Posted 05/05/2010 - 08:37 Link
The focus limiter on the older FA lens limits the focus range between one of two settings to limit the focus travel. The focus clamp is essential a brake to stop the moveable barrel from creeping when used vertically.

So no, they are not the same thing at all.
Peter E Smith - flickr Photostream
Edited by Mannesty: 05/05/2010 - 08:38
royd63uk
Posted 05/05/2010 - 09:22 Link
thanks Peter
so i may go for the Tamron especiallly as tamron/srs are giving 5 years gaurantee at the moment.
Roy
regards
Roy

Pentax K3 gripped,and some lenses
https://www.flickr.com/photos/pentaxroy/

my pbase gallery
Anvh
Posted 05/05/2010 - 15:20 Link
This might sound strange but you would not miss the focus limiter much because it has quick-shift.
If you see it over-shoots the focus, you simply stop give the focus ring a twitch so that's closer to the focus and 95% of the time it snap on instantly then.
Stefan
Comment Image

K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ
royd63uk
Posted 05/05/2010 - 15:28 Link
thanks Stefan,that might actually be a better way to do it?

mmm decisions decisions
regards
Roy

Pentax K3 gripped,and some lenses
https://www.flickr.com/photos/pentaxroy/

my pbase gallery
Anvh
Posted 05/05/2010 - 15:56 Link
Roy, just try it In the shop if you can, you notice fast enough which you find better to handle.
Stefan
Comment Image

K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ

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