Hmm... yes the F/2.8 enable us to shoot in faster shutter speed, and in that case it reduces motion blur. However that still doesn't produce a sharp image, unless the Tamron manage to focus in time and get it right for that very moment. Else the benefits of shutter speed still not very helpful, in my case. Not sure if AF Assist really accurate for 3rd party lens, as it mis-focused a few times. Perhaps I didn't use the right AF mode and caused the lens to hunts more.

I haven't tried 16-105 yet, but looking at the range, it offers a pretty wide range at the beginning and decent zoom at the other end (which I plan to use it as potraits). For sure in terms of sharpness, Tamron 17-50 would offers its sweet spot at bigger aperture compared to 16-105. I'm just wondering if 16-105 can do the similar job on smaller aperture with the help of Cobra.

back from TT... fuh.. intimidated ...

Phottix, Octopus and Taylor seems to come from the same source, China. Its unknown if they are from the same factory (OEM) but the build quality, design and material is exactly the same. Only diff is the brand label sticker.

The grip is well acceptable as a cheaper alternative to the ori sony grip, build and feel in hands is very comfy and very usable. Still, the build quality and feel of the Sony grip is better, but not that much by my poor peasant standard.

Oh... and the Sony allows for auto switching of both battery in the grip, while Phottix, Octopus and Taylor branded ones need u to manually switch batteries via a switch below it. I simply load only one batt and change that when it gets depleted.

mmmm let me see


Speed depends on SAM, SSM, AF screw length. not how much light.

focus hunt depend on the contrast of image (thts why carl ziess has better focus at night due to it boost eh contrast of subject to focus on) (depends on light)

focus hunt accuracy depend of AF sensor design, like F2.8 sensor* i need to eleborate more, but i have difficulties to explain in english. the shape of the diod/sensor of the sensor will decide the 'pattern' it will phase detect. (depends on focus hunt above, indirectly, related to light)

all 3 added up = performance rating.

but how much a 2.8 light will affect it? not forgetting the mirror cuts off 70% of the light. F2.8 may sound double to F5.6, BUT, not forgetting our lens are wide open all time when attach, thus it could be F3.5, and 2.8 is not double of light of F3.5.. it's about 30% more only.

3rd option, 3 units of f20

yes, subject futher then 10 metre. coz the AF illu cant shine that far...

but like we say, photography is not about the machine, but the person behind the machine.

so, let us be smart, try to focus on bright/lightsource, which is in the same focus zone of our subject. not rely on the machine. right? innovative.

Hahaha! everyone with chun lenses.. Only us with kit lens.

ahahahha.. so got poisoned yet?.. i have just realized.. its the user problem on the kitties where i cannot get ultra sharp shots...

but of course, the tammy is good..

then again if u got loads of $$$ to dump around then CZ all the way mann..

Hahaha feel so intimidated my the 135CZ. Loving it more and more. Die la die la.

quite poisoned by the tammy 50mm f1.8

tammy 50mm f1.8??? Got this lens meh?

wheeeeeeeeeeeeeeeee........ CZ FTW

1.4 sorry

sony sal 50mm1.4 u mean =P.. clives prime

This post has been edited by lildaredevil906: Nov 4 2009, 12:29 AM

both also did not exist

trust me, it get worst with 16105 at F5.6 vs any F2.8 lens at natural light shooting


16-105, at 105 F5.6 the bokeh is as good(my opinion is better) then 50 F2.8
with a cobra, every lens is cantik.

*repeat from old post. "and even better is, when, very very very malang, ur flash battery dead. F2.8 iso 800/1600 on A300 still can let u continue ur wedding/event job compare to a F5.6"

Its a SAL 50 1.4

aih.... but i tot albnok's one is not sony?

owh ya, didnt say hi to u just now. sorry.

@.@ moo got 135?!!??! hehehehehehehe kidding

oooo, that one.. its an old lens... A-mount