Sigma 30mm f/1.4 User Group

[baileys]

here are some of my contributions, nothing very fantastic so far, still learning

 

[woolman]

F1.4

how close were you when you took this shot? tks

 

[woolman]

Hi All, Just got mine a few days ago. However, I am having problem getting a sharp photo with my D300 for any aperture below f/4 when view at 100%. It is especially bad at f/1.4. Tried and test the focusing. It is OK. Anyone know the reason why? I will try to post some photo later... Thanks.

Sigma QC is known to be erratic... yours may be one of those that the QC wasn't good...

 

[woolman]

IMHO, this lens shines even at the widest aperture.
Here are the examples at f/1.4

f/1.4 and iso 3200

how close were you to the subjects with these two shots? tks

 

[King Kong]

Isaiah>> I bought it for SGD$540 in HK with intl wty.

King King>> Pls post some pics so we can see what the problem is!

This is taken at F/1.4...

And this is in F/4...

Any idea why???

 

[Cheesecake]

This is taken at F/1.4...

And this is in F/4...

Any idea why???

u've got a lemon.

ideally u shud get it to change at the shop or send to Sigma for servicing.

not surprising to get a lemon, it's Sigma afterall.

 

[intosite]

i like the lens too.

http://www.flickr.com/photos/intosite/2336017419/

http://www.flickr.com/photos/intosite/2336105823/

http://www.flickr.com/photos/intosite/2336107491/

more here,
http://www.flickr.com/search/?q=sigma+30+f1.4+POP&w=63417114@N00&s=int

 

[baileys]

intosite>> whoa! i like your 2nd pic!

 

[froisnaidu]

a test shot of the 30mm...with a little help from a frequent model

 

[Michael Limenta]

how close were you to the subjects with these two shots? tks

I think it was about 2-3 m away.

 

[Isaiahfortythirtyone]

This is taken at F/1.4...

And this is in F/4...

Any idea why???

yeah it's probably a misaligned element. u gotta bring it back to sigma.

 

[King Kong]

u've got a lemon.

ideally u shud get it to change at the shop or send to Sigma for servicing.

not surprising to get a lemon, it's Sigma afterall.

Hi All, Just got back from Sigma Service Centre. My Sigma 30mm F/1.4 had a bad front focusing problem... After an hour of calibration, they managed to fixed my problem. I will try to post some pictures later!

 

[froisnaidu]

Hi All, Just got back from Sigma Service Centre. My Sigma 30mm F/1.4 had a bad front focusing problem... After an hour of calibration, they managed to fixed my problem. I will try to post some pictures later!

On the the spot huh...So its jus the calibration offset out then...Nothing wrong with the lens?:thumbsup:

 

[Cheesecake]

Hi All, Just got back from Sigma Service Centre. My Sigma 30mm F/1.4 had a bad front focusing problem... After an hour of calibration, they managed to fixed my problem. I will try to post some pictures later!

glad for u. :thumbsup:


looking forward to seeing ur fotos.


cheers!

 

[King Kong]

On the the spot huh...So its jus the calibration offset out then...Nothing wrong with the lens?:thumbsup:

Yes, It was so much front focus that it was even out of my test range when I did the focusing test. Nothing else was wrong with the lens. I did some test shot last night and it looks good. I especially like the Bokeh when shooting wide open at F/1.4. I have a trip coming up and intend to bring the Sigma along. I will try to post some pictures soon...

 

[cooldive]

Hi All

Just got my my 30/1.4 today..... Can't wait to try it out......

DSLR Newbie here. Question... What determines how wide to open the aperture when using AV priority? Understand that 1.4 gives the best bokeh....

Thanks

 

[rendition]

Hi All

Just got my my 30/1.4 today..... Can't wait to try it out......

DSLR Newbie here. Question... What determines how wide to open the aperture when using AV priority? Understand that 1.4 gives the best bokeh....

Thanks

This is gonna be a real quick crash-course reply

Basically, larger aperatures (Lower f. Number) gives you best bokeh and allows more light to enter, thus, allowing faster shutter speed. Smaller aperatures (Large f. Number) gives a sharper background but will decrease exposure, thus, longer shutter speed required.

 

[zhikang]

hohoho just got my copy yesterday! very satisfied with it so far... =P here're a few shots taken wide open @ 1.4

 

[baileys]

hohoho just got my copy yesterday! very satisfied with it so far... =P here're a few shots taken wide open @ 1.4

wanna ask if theres any postprocessing done to your pics besides resizing?

 

[cichlid]

Has anyone bought a grey set and has focusing issues?

Does the shop calibrate the lens for you?