December 20, 2014, 01:56:28 AM

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Messages - infared

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1
Hi ....(this will be little lengthy)...I have posted here before regarding the Sigma 50mm and the 35mm Art Lenses.
I own both and with some hesitation and quite a bit of attention to getting the lenses to perform consistently well.
I bought the 35mm Art first and I did not really test it at first...I was amazed by the sharpness. I am more an artistic photographer than I am a measurebator. ... I also bought the 50mm Art (when I could finally get my hands on one), and I was well aware of the focusing issues when I purchased that lens.  I also bought a the Sigma Lens Dock when I bought the 50mm.
Here is how I test...I shoot specific images just for the testing and I will shoot a specific spot close and a specific spot much farther away.  I repeat this a few times and look at my results. I use center focus points and edge points.  I use a "Show Focus Points" Plug-in in LR so that I know exactly where I focused. (I will mention that both my "Show Focus Points" Plug-in and Canon's DPP show the focus point location on my computer screen slightly to the right of where I actually focused using the camera (5DIII). This is consist with every shot.    There is a half to about 3/4 of a focus point shift from my camera to the two softwares I use on the computer???? (Does anyone else experience this?)
Anyway...My 1st 50mm Art was all over the place and I could not get it to focus consistently.  After wasting hours of my life ...I returned the lens to B&H, explained the situation (which they were well aware of) and they gladly sent me another lens.  The 2nd lens was MUCH more consistent....and needed just a slight bit of tweaking on the Sigma Lens Dock (I did not touch the focus adjustment in the camera).   I have used the lens quite a bit and it is consistently accurate wide open...Any issues I have are to do with operator error...I think that this lens is just fantastic.  (but I worry about it shifting because of all I have read.)
OK...the 35mm ...Needed a LOT of adjustment on the Dock +13 in all 4 zones.  At least it was consistently of and I could have used the AFMA in the camera to straighten this out as well.  I must say I am a little disturbed and how big this adjustment is.  It leaves me uneasy.  ...but the lens seems to perform consistently well now that I have taken the time to adjust it.
Now ...I do not sit around with charts and..blah..blah blah... I use the lenses to go out and shoot images. ...and when I am shooting wide open I check my focus point occassionally and the lenses seem very accurate....and i just love the IQ...Especially for what I paid. 
Its a drag to have to do all of this work...but in my case I feel that it was worth it.  Both these lenses are capable of creating really great and unique images!!!

So...those of us who have trouble with consistent AF and lousy AF off the center point just need to do more voodoo, be less demanding, and more understanding?

I'm not sure you've carefully read many of the posts.

I'm happy you were satisfied with your second copy of the 50. 

I'm hoping to hear great reports if Sigma fixes erratic AF with a firmware update.

I read all the posts. I had a different experience. I had a lousy lens. I sent it back. I was able to get a better copy.
Not doing any vodoo.
My photos look fantastic and are in focus where I want them to be.  Just reporting my point of view, how I set up my camera and lenses, my experience and the results with MY equipment. I am a very technical guy. ...but I like to go out and shoot. The results are more than satisfactory...but that's me. Obviously other people have had different experiences.  I have read many reports where photographers are having good experiences with both of these lenses, too.
I just love these lenses. They were just a bit of extra work to set up in my case.

2
Third Party Manufacturers / Re: Have you repaired your 50 Art?
« on: December 19, 2014, 06:54:53 PM »
Hi ....(this will be little lengthy)...I have posted here before regarding the Sigma 50mm and the 35mm Art Lenses.
I own both and with some hesitation and quite a bit of attention to getting the lenses to perform consistently well.
I bought the 35mm Art first and I did not really test it at first...I was amazed by the sharpness. I am more an artistic photographer than I am a measurebator. ... I also bought the 50mm Art (when I could finally get my hands on one), and I was well aware of the focusing issues when I purchased that lens.  I also bought a the Sigma Lens Dock when I bought the 50mm.
Here is how I test...I shoot specific images just for the testing and I will shoot a specific spot close and a specific spot much farther away.  I repeat this a few times and look at my results. I use center focus points and edge points.  I use a "Show Focus Points" Plug-in in LR so that I know exactly where I focused. (I will mention that both my "Show Focus Points" Plug-in and Canon's DPP show the focus point location on my computer screen slightly to the right of where I actually focused using the camera (5DIII). This is consist with every shot.    There is a half to about 3/4 of a focus point shift from my camera to the two softwares I use on the computer???? (Does anyone else experience this?)
Anyway...My 1st 50mm Art was all over the place and I could not get it to focus consistently.  After wasting hours of my life ...I returned the lens to B&H, explained the situation (which they were well aware of) and they gladly sent me another lens.  The 2nd lens was MUCH more consistent....and needed just a slight bit of tweaking on the Sigma Lens Dock (I did not touch the focus adjustment in the camera).   I have used the lens quite a bit and it is consistently accurate wide open...Any issues I have are to do with operator error...I think that this lens is just fantastic.  (but I worry about it shifting because of all I have read.)
OK...the 35mm ...Needed a LOT of adjustment on the Dock +13 in all 4 zones.  At least it was consistently of and I could have used the AFMA in the camera to straighten this out as well.  I must say I am a little disturbed and how big this adjustment is.  It leaves me uneasy.  ...but the lens seems to perform consistently well now that I have taken the time to adjust it.
Now ...I do not sit around with charts and..blah..blah blah... I use the lenses to go out and shoot images. ...and when I am shooting wide open I check my focus point occassionally and the lenses seem very accurate....and i just love the IQ...Especially for what I paid. 
Its a drag to have to do all of this work...but in my case I feel that it was worth it.  Both these lenses are capable of creating really great and unique images!!!

3
I sell storm doors and surf boards on CL...nothing more.....eBay has hefty fees...but I reach a better audience and don't have to deal with Joe-Public.  I live in NJ...and everyone has a sob story...badda bing...badda boom! Know what I mean? A lot of time gets wasted. 8)

4
I know that I am the odd man out...but I refuse to own a smart phone.   ??? 8) :o
I like to be in the moment wherever I am.
So...I split my images between my FF Canon Kit and my MFT Olympus Kit.
Life is good!

5
Third Party Manufacturers / Re: Review: Zeiss Otus 85mm f/1.4 Apo Planar T*
« on: December 16, 2014, 02:20:29 PM »
Great review...wish I hadn't read/watched...LOL!
I am sticking with my 85mm f/1.2L II.   
Dustin...please do not do a comparison...just leave me in ever lasting ignorance!
That way I can still love the lens that I own.

That is pretty much the way I felt about my beloved 135L after doing the Sonnar T 135 review.

Yes..Yes...I remember reading it!  At least you could say that the 135L was less than half the price and has super fast AF....
My 85L II may be less than half the price..but the AF is turtle-like..at best!!!!! LOL!  (I do still REALLY love that lens...it;s unique).

6
Third Party Manufacturers / Re: Review: Zeiss Otus 85mm f/1.4 Apo Planar T*
« on: December 16, 2014, 10:55:54 AM »
Great review...wish I hadn't read/watched...LOL!
I am sticking with my 85mm f/1.2L II.   
Dustin...please do not do a comparison...just leave me in ever lasting ignorance!
That way I can still love the lens that I own.

7
Third Party Manufacturers / Re: Reviewing Olympus 40-150/2.8
« on: December 09, 2014, 12:02:47 PM »
I used to shoot Olympus 4/3  until they abandoned the format for the micro 4/3 format. They were far more innovative than Sony/Nikon, or Canon and had a lot of firsts in the digital SLR world. Some of the lenses were outstanding, like a 14-35 at a constant F2.0, a 50-200F2.8, and all the cameras and lenses were weatherproofed.

When they went to the micro 4/3 form factor the ergonomics died with the move.... then, after years of waiting, they released the E-5 as their flagship model, a camera that was inferior in every respect to every other DSLR on the market.... That's when we knew it was time to abandon ship.

Since that day about 6 years ago, the selection of fast micro 4/3 lenses has been scarce. Here's hoping that this is a sign of things to come and that they can turn things around.

I was in pretty much exactly the same position as you. I had the E-3 and an E-620 but it became pretty obvious they were giving up on DSLR cameras in favour of mirrorless so I sold my kit and moved to Canon. At the time I thought the m4/3 system would be limited to the PEN form factor and cheap zoom lenses, so I kind of wrote it off, but looking at it now, I think it takes better advantage of the small sensor, and with the new lenses it starts to make sense as a system.

Some days, I still pine for my Zuiko lenses, the 12-60 f/2.8-4 especially.

Yes..the MFT system has developed nicely with very good Panasonic and Olympus primes & zooms. The higher end lenses are coming all the time and you have a lot of other manufacturers joinin the fray like Zeiss and Voigtlander making native mount lenses.  There are a lot of very good choices.  The system has its limitations but you can really squeeze a LOT out of it and walk around with a VERY light kit. It brings a lot of fun and spontaneity back into photography for me.  I really have a lot of freedom and fun while capturing great images.
I just sold a print yesterday to someone from this kit. They did not ask me what camera system I used. They just loved the image!  8)

8
Third Party Manufacturers / Re: Reviewing Olympus 40-150/2.8
« on: December 09, 2014, 09:20:47 AM »
Hmmm.interesting to see this here...I have a very nice FF kit (check specs down below), and I also maintain a full MFT KIt......I decided to order the Oly 40-150mm Kit from Osaka , with included TC1.4x. (lens not available in US and Kit will not be sold here..I saved $100!....)I just saw the possibility of really expanding that kit to a place that I had not imagined. Took delivery this week (free postage from Osaka took 2 days to get to NJ????)...came with free gift and one dime. That's right...one dime in box!  :P
The lens is impressive on my EM1 and the matched TC is like having more reach with no penalty other that f/4. My preliminary tests are making me very happy that I made this choice. No...it's not a FF sensor..but for most of my needs its all there in a small way.
The new Oly Lens is large for MFT..but not in comparison to other systems.
If you take a look at this: http://camerasize.com/compact/#482.444,579.392,312.7,ha,t
We can see that the Sony set up is only f/4 and has way less reach. The Canon setup has way less reach and teh TC1.4x III is sooooo much larger than the little sliver of the Olympus.

Yes..yes..yes.... ..this is not FF...but I have to say..if you know what you are doing shooting and with post production..its damn good. And its in a significantly smaller and lighter package. Not for everyone..but I can see I will be grabbing my MFT kit more often because this lens is in it.

9
I got B+W 77mm XS-Pro Clear with Multi-Resistant Nano Coating (007M) for mine and it works great

+100

10
Third Party Manufacturers / Re: Opinions on Sigma 85/1.4?
« on: December 05, 2014, 09:54:58 AM »
Never Used that lens...but I had the original sigma 50mm and sold it and bought the new Art 50mm.
All I can say is WOW!
Have the Sigma 35mm f/1.4 Art ...All I can say is WOW!
For the price the current sigma 85mm is I would wait for the Art or pick up the Canon 85mm  f/1.8 in the meantime. My buddy just bought one..for the price...what a great lens.  It has some CA ..but hey its sharp and cheap and the CA is easily removed in LR.
I have the Canon 85mm f/1.2 II.  GReat lens with caveats....like CA (remove in LR) and reall slow focus.  LOVE that lens.
Lots of choices and price ranges....
Could be a wait for the new Sigma Art 85mm..I think that it is rumored that the 24mm Art is coming next..but who knows.

11
EOS Bodies / Re: Petapixel: Canon Full Frame Mirrorless
« on: December 03, 2014, 11:29:44 PM »
"It’s pretty obvious a new EOS M camera is coming, but I suspect it’s going to be the 70D sensor in a camera that will have a new design philosophy."

That sounds like a sensible guess....Time will tell.

12
I am not interested in a 4 K monitor. 8)
After the gear "more knowledge" about photography is most useful...the cool thing is...we can never learn it all!
For instance...if you are seeing "no difference" between your sigma 50mm Art and the 24-105mm please shoot with both of them with wide open apertures and you will see that the 50mm renders with this incredible slice of "in-focus" area with a beautiful background blur (isolating the subject), that the 24-105mm simply can't come close to.
The 50mm Art (a good copy), is a most wonderfully "unique" lens when used skillfully.

13
Lenses / Re: I *HATE* UPS.
« on: November 29, 2014, 11:44:13 AM »
Interesting...Just to put your mind at ease..my Sigma 50mm Art...has like a muffled rattle inside when I shake it.
Nothing like a loose part or anything like that...feels like a large part of the lens is moving inside with a buffer.  Maybe it has something to do with the AF.  Don't know.
I would definitely do a critical focus test on your lens with a tripod at varying distances. Almost everyone, including myself needed to fine-tune the lens for better results, which I think is essential with that wonderful sliver of DOF.
Enjoy the lens.

14
Lenses / Re: I *HATE* UPS.
« on: November 28, 2014, 11:24:59 PM »
Sorry to be cynical (well not really). Let's be realistic. The treatment it got in the trucks it traveled in and the sorting facilities was as bad or worse than your drop box.  Any of my shippers usually package things decently and the packaging from the factory is very protective. I think you are over-reacting big time. If you are having this much anguish over the delivery wait till you check the AF on that lens...THAT could cause heart failure!  I had to send my first one back to B&H...the second one was very good and just needed a little tweaking on the dock. Hope you got a winner!
Now...you should never do what I did today...I ordered a VERY expensive lens and TC1.4x Kit(twice as expensive as the Sigma 50 Art), for my Micro4/3rds camera from Osaka, Japan!  I did this for two reasons. The lens is a new release here in the US and cannot be had in the states for months and I actually (unbelievably), am saving $70 by ordering it from Osaka! Go figure? I am not concerned at all about the long trip...I do this all the time with camera bodies and lenses and have never had a problem.
I am sure that your lens was totally unfazed during the shipping. Don't sweat this, there are actually things in life to get upset about.

15
Lenses / Re: Review: Sigma 50mm f/1.4 ART for Canon
« on: November 26, 2014, 12:33:46 PM »
Thanks, everyone, for the nice feedback.  P.S. My comments regarding the USB dock were not intended to suggest that no one would like using it (I say otherwise), but rather that some users might find this "extra step" in lens ownership somewhat overwhelming.

LOL!...not only that...it is somewhat of a saga to pay $950 for a lens, send a copy back, get another copy and then that one being good I have to take my time to do a through test (again) and then fine-tune the lens on the dock.
Phew!  I think it was worth it....because when I use the lens it WOW's me ...but that is an awful lot of my time to get something right that I spent $950 on?   I would do it again..but this is supposed to be a well-paid-for, precision instrument...I cannot help but think I am doing a whole lot of work and giving of my time that should have been handled by Sigma... One positive note is that the lens is dialed in just for my camera body...and I know they can vary...so it is kind of a mixed mess...but in my case I did finally have a good outcome. 
The lens is great!!!!

Oh...and Dustin...THANKS sooo much for including the link for the "Show Focus Points" plug-in for Lightroom!
That is just a valuable tool to have as the only other place I could check up on myself and my camera AF at time of capture was in-camera or with the Canon image software which I rarely use, if ever. That is just so cool to have loaded in LR where I do a lot of my post processing.

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