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FORUMS Sample Photo Archives Lens Sample Photo Archive 
Thread started 23 Feb 2006 (Thursday) 20:24
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Sigma 30mm f1.4 EX DC HSM

 
Davivascaino
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Jun 20, 2012 12:28 as a reply to  @ post 14604321 |  #7141

Got my lens back yesterday from sigma after sent the body and lens last wednesday. They were amazing.

I was not the first owner, so I sent the original receipt from the previous owner, and they did not charge me anything

I sent to NY center last wednesday, they received my lens/body Thursday, fixed and sent it back to me on Friday:cool::cool: I got it yesteday.

I am very pleased with the results. some samples all SOOC, no sharpening, nothing at all.

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Focus on the date

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Focus on the helmet

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focus on the bouncer bioshock LOL!!bw!bw!

All taken at 1.4

GREAT LENS!!! THanks sigma!!!

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Miyagi-san
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Jun 20, 2012 14:26 |  #7142

BIG DADDY!


".....Nice camera! .....How many times zoom?!?"

  
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_Steven89
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Jun 20, 2012 19:43 as a reply to  @ Miyagi-san's post |  #7143

^^Cool shots!!

Changed up the color in light-room with these.. I like the results :D

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Jaynez
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Jun 20, 2012 22:24 |  #7144

touji wrote in post #14604313 (external link)
What aperture did you shoot at? Looks like the wall infront of the window is sharpest in the picture :confused:

@1.4, it may have slightly front focusing problem.

@tomcat7886 ty =)


5D Mark II | 6D
24-70mm F2.8L | 17-40mm F4L | Canon 85mm F1.8 USM | Elinchrom D-Lite 4 IT

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dngphoto
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Jun 20, 2012 23:26 |  #7145

@ 1.4 this lens has razor thin dof, the slightest shake on your part will throw the focal point off...I love the IQ but rarely am I shooting at 1.4 these days...


Sean - dngphoto&film 5dii Gripped / Σ 50 1.4 / Canon 28-135 USM / Σ 12-24 HSM

  
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ChuckingFluff
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Jun 21, 2012 12:03 |  #7146

Jaynez wrote in post #14609306 (external link)
@1.4, it may have slightly front focusing problem.

1.4 is hit and miss but I wouldn't call this lens a problem as it takes time to learn how to shoot at 1.4. I'm rarely shooting at 1.4 unless I have a tripod.




  
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n4ck
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Jun 21, 2012 14:11 |  #7147

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Downtown San Diego (external link) by N|M Photos (external link), on Flickr

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My new life blog! (external link)

  
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ions
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Jun 22, 2012 14:11 |  #7148

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Beastie the Bearded Dragon Bound in the Beach (external link) by Christopher Brian's Photography (external link), on Flickr

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Queen and Woodbine Mural (external link) by Christopher Brian's Photography (external link), on Flickr

Gear: Canon EOS 5D3 | Canon EOS 7D | Canon 24-70L ƒ2.8 | Canon 100L ƒ2.8 | Canon 70-200 ƒ2.8L IS II | Canon 420 EX | Tamrac Evolution 9 | Crumpler 8 MDH | Manfrotto 190QC with 804RC2 head.
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BlackRainbow
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Jun 23, 2012 16:38 |  #7149

just bought it :) It's very usable at f/1.4 (test photo, all at 1.4 except for №4, it at f8)

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Body 5Dc + Grip
Lenses | Canon EF 135mm f/2L USM | Canon EF 35mm f/1.4L USM
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BlackRainbow
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Jun 23, 2012 16:45 |  #7150

sorry, A bit more :o (all f1.4)

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Body 5Dc + Grip
Lenses | Canon EF 135mm f/2L USM | Canon EF 35mm f/1.4L USM
Canon EF 17-40mm f/4L USM | Canon 50mm 1.8 STM
Flashes | Canon 580 EX II | Canon 430 EX | Pixel King Flash E-TTL Trigger

  
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Ray33
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Jun 25, 2012 12:43 |  #7151

touji wrote in post #14604641 (external link)
A quick and dirty way is to line up batteries in a 45 degree angle, equally spaced apart (As best as you can). Throw your camera up on a tripod, focus on batteries, and BLAM! You should see if you are getting front or back focus depending on which batteries are in focus.

http://cameralightlens​.com/newsblog/?p=264 (external link)

I am really glad I saw this and post 7150 (below).

I bought one of these off ebay after a couple of message exchanges with the owner assured me there were no focusing issues. It arrived as we were going out the door for a day long outing and I took it along. Knowing the focusing issues that the lens may have, I took a bunch of pictures and was sensitive to "front focus", but I only saw one where that may be a problem.

I decided to do some tests with focus charts (two of them) and UH-oh, looks like front focus. Started wringing my hands and cussing the previous owner for lying about the focusing issues.

That night as I was waiting in bed waiting to go to sleep, I started to thing about the tests I did and some of the things I had read about the lens and wides in general:

>>Unless a wide angle lens is perpendicular/square to lines, they will tend to converge at odd angles (I was at a 45 degree angle to both focus charts, hmmm)

>>Very thin dof at f/1.4 means that that not being perpendicular/square might affect the thin area of focus in front/behind the focus target. Hmmm

>> Use only the center focus sensor, not the full array (I have a Canon 60D). Hmmm

>> Hand held is much less preferable than tripod mounted, especially at "test" shutter speeds under 400 or so. Hmmm

Next day I used a tripod, 5 AA batteries lined up touching each other (front to back and offset a bit) and made sure I was perpendicular/square to the batteries (no 45 degree angle) and I used a flash. No front focus, no back focus issues. Whichever battery I focused on at f/1.4 was perfect and the batteries in front and behind were a bit blurred.

I haven't been at this very long (re-entry after 30+ year absence), but I have been pondering this question since the second re-test with the batteries - Did the lens begin to focus perfectly because 1) the test methodology changed to deal with all of the things noted above -OR- was it just because the lens was well-rested after having had an additional night's sleep?

:D

Now that I've had some fun with this, I suspect that the lens may get a bit of a bad wrap because of the difficulty in working with a wide open f/1.4. Somewhere between actual lens focusing issues and operator error is likely where the truth lies. Based on all of the general usage on the first day (48 pics), the testing (30 pics in the focus chart test and 80+ pics in the batteries test) plus what I have read about the wide open wide angle dof, in my mind I am pretty comfortable thinking that this lens at f/1.4 will probably require some experience to fully maximize results in a photo and stability, center focusing and as square/perpendicular as I can muster will contribute to better results.

Just to keep the heat level down on this whole thing a bit, I am NOT an expert at this, just relating some experience based on what I have to work with. Also, I did the same tests with my Canon 15-85mm f/3.5-5.6 IS USM wide open at 15mm. On the focus charts it had a bit of back focus, on the batteries it was also perfect. Of course, it too had another night's sleep. :-) Both lens are terrific in general shooting at various f-stops.

So, YMMV, but I hope some of this was helpful.

BTW - the pictures posted on this thread are a large part of the reason I wanted the Sigma 30, along with a fast lens to catch grandchildren in motion indoors w/o flash.


His: EOS R | RF 24-105 | Control Ring Adapter | Luma Cinch
Hers: 40D | Tamron 17-50 non-VC | Luma Cinch II
Ours: Canon EF 40 f/2.8 | Tamron 70-300 VC | 430EX II | Manfrotto 055CXPRO3 w/ Arca Swiss Z1 Head | Billingham 445

  
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llazlok
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Jun 25, 2012 13:13 as a reply to  @ BlackRainbow's post |  #7152

With 1DmarkII (f/3.5)

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Viva-photography
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Jun 25, 2012 13:56 |  #7153

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Canon 5D Mark II// Canon 85mm f/1.8//Sigma 35mm f/1.4//Canon 70-200 f/4L

  
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Davivascaino
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Jun 26, 2012 19:47 |  #7154

first time took my lens out for a field test after it came back from sigma

I am in love!!!! Very sharp

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Davivascaino
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Jun 28, 2012 09:24 |  #7155

One more

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Sigma 30mm f1.4 EX DC HSM
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