Comments made by MrCynical - Page 66

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That's one of them yeah - and the mount does look very small indeed. I probably wouldn't be comfortable about having the electrical contacts exposed (I live in Scotland, the only place in Western Europe to suffer monsoon )

Comment by MrCynical posted on Wanted: Bokeh Monster at 17/05/2010 - 00:14

thoughton wrote:
the mount is so small that all the contacts on your camera are visible (which also means catch-in-focus doesn't work, and that was important to me at the time).

Hmm... maybe I'll look at the other lenses on the lots-of-aperture-blades list I came across.

Comment by MrCynical posted on Wanted: Bokeh Monster at 16/05/2010 - 23:21

The Pentacon 135mm f2.8 with the 15-bladed aperture. AFAIK there are at least four different Pentacon versions of this, and it was also released under other brands (definitely a Meyer version for example). Just to make it even simpler, Pentacon also made a 135mm f2.8 which did not have 15 aperture blades

EDIT: mowog beat me to it!

Comment by MrCynical posted on Wanted: Bokeh Monster at 16/05/2010 - 22:57

Does anyone have one of these they could part with? They seem to go for about £35-40 on evilbay, but I'd rather avoid all that hassle if I could. Not fussed as to which of the variants it is - so long as it's in good condition and can stop down on DSLRs.

Comment by MrCynical posted on Wanted: Bokeh Monster at 16/05/2010 - 22:29

Anvh wrote:
I'm thinking the KAF2 mount is simply faulted by his complexity and that the KAF3 mount will preform better.

It has been suggested in quite a few places that it is the gearing that fails rather than the motor, but KAF3 doesn't change that. The KAF3 lenses (such as the DA*55) still have gearing between an SDM motor and the lens elements (compared to for example Canon's 'ring USM' which drives the elements directly).

Comment by MrCynical posted on New Sigma 120-400 OS dated at 16/05/2010 - 21:52

Anvh wrote:
you sure?
There aren't many lenses with HSM for Pentax that's one reason we don't hear much about it on this forum.
I've no idea how it is on Canon or Nikon forums.

Sigma's HSM foible is in making them focus accurately in the first place (see Sigma 50mm f1.4 for further reading!) As far as I can tell if you get a Sigma lens that accurately focuses to begin with, its HSM motor will not break like SDM are reported to.

Comment by MrCynical posted on New Sigma 120-400 OS dated at 16/05/2010 - 14:56

I must resist, as it is too long for what I do now (portraits!) and too short for what I might want to photograph in the future (little furry/feathery things). Looks like a good lens

Comment by MrCynical posted on FS - Jupiter 11-A 135/4 k mount at 15/05/2010 - 22:47

Anvh wrote:
Yeah I forgot that they didn't had a dual focus system like the DA*50-135 for example.

That's because Sigma build their HSM motors to last more than a year

Comment by MrCynical posted on New Sigma 120-400 OS dated at 15/05/2010 - 22:39

Must.. resist.. Sigma 400

Comment by MrCynical posted on Nice used equipment anyone? Inc. K-7... at 15/05/2010 - 17:34

helios wrote:
It is perhaps encouraging that our new coalition government is in favour of rolling back the assaults on our liberties perpetrated by the Labour government

But perhaps discouraging (at least for left-of-centre people) that we rely on a Conservative government to protect our liberties from a Labour one. Something seems the wrong way round about that.

Comment by MrCynical posted on I met a policeman one morning. at 15/05/2010 - 17:32

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