November 27, 2014, 07:21:20 AM

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Messages - e-d0uble

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1
Macro / Re: Flower macros
« on: September 17, 2014, 06:36:04 PM »
digitalis purpurea

2
Here's a quick one @f/2, 1/320th, ISO 100.

3
Lenses / Re: Sigma 50mm Art 1.4 Focusing problems
« on: June 18, 2014, 04:22:01 AM »
I received my copy of this lens several days ago, and I admit that it's a bit of a head-scratcher for me.  First off, I ran a series of shots of a static target at different distances in order to calibrate it with the Sigma dock/optimization software.  I achieved razor sharp results at f/1.4 after dialing-in the appropriate adjustments for each distance on the scale.  I did use a tripod, an extremely bright halogen lamp (EV 10, at least), and center-point focus only for the calibration.  I also played around with live-view focus which obviously achieved excellent quality and consistent results.  After calibrating with the dock (each zone, save for infinity ended up at approximately +10 or so) I took the lens out for some test shots.  The results were somewhat inconsistent, as others on this forum have reported.  Many shots were spot-on, but some were confusingly out of focus - and often by a quite a wide margin.  I deliberately kept the lens at f/1.4, but made sure shutter speeds were never below 1/200th.  I probably should have noted what points on the 5d3 I was using when the misfocused shots were taken as I believe I did read a post on this forum that mentioned problems with off-center (or perhaps non-cross-type) focus points and this lens.

Next up, I attempted to AFMA with FoCal for kicks.  FoCal's AFMA module absolutely hated this lens and reported 'poor' confidence (red color) in two complete runs.  I didn't bother saving the logs.  Next up I used the FoCal's AF consistency module which reported 97.5% consistency with phase detection... weird.  I wonder if I've not received a dud lens, or if my old hands are shakier than I truly realize.  I do own the Sigma 35mm f/1.4A which is an absolute gem.  I have no problems whatsoever with the 35A in terms of auto focus.  Sure, 35mm has lots more DOF at F/1.4, but I just can't miss with it. 
Thoughts, anyone?  I see that some people have already exchanged their copies of the 50A (even several times)... Thanks.

4
Mine should be here today (Friday).  Looks like rain all day here (Sandy Hook, CT), so it'll be strictly indoor testing.  Hopefully I won't have to spend two hours with it hooked to the dock =)

5
I pre-ordered from B&H on 4/11 at 16:10 EST.  It's still "on order".

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My B&H order is still pending.  I ordered at 4/11 16:10 EST. The suspense is somewhat killing me.

7
For wide open shots those are quite sharp.  Very very nice.  Lovely model as well.

Couple more shots with the Art 50 today… f1.4, ISO 100, 6D.

No sharpening, just blemish removal and smoothing of skin.


Focal point was the left eye.

Model Credits to Raquel Romans - http://instagram.com/raquelromans





8
Interesting.  Thanks for the tip, which I'll certainly try.

I updated my USB dock firmware to "1.2.0" and still find it to be useless a product.  Each time I connect my 35A to it, I'm told there is a firmware update for the lens (1.02 I believe) so, I update the firmware and disconnect the lens.  If I reconnect the lens I'm told again about the same update.  If I don't disconnect the lens I'm able to adjust the focus settings, but as soon as I disconnect the lens and reconnect I'm again told about the same firmware update.  If, while the lens is still connected I hit "later" to the firmware update the "customize" button is greyed out and I can't make changes.  I thought at first the issue lay with my laptop, so I used a different computer - same problem.  Perhaps the issue is with the lens BUT - months ago, and after several cycles of this nonsense, I was actually able to set the focus adjustments and use the lens.  If I reconnected it to the dock, I wasn't prompted to update the firmware and the focus settings I changed stayed.  I figured I was out of the water.  I was wrong.  After a few weeks, I reconnected the lens and was again prompted to update the firmware.  Rinse and repeat.  I've had to write down the settings I made so I don't have to attain them every time this problem occurs.

Updating the dock firmware and connecting the lens just now, I'm once again prompted to upgrade its firmware.  Perhaps the lens "forgets" its firmware after a few hours.  Who knows.  While I am looking forward to the 50A and I do love my 35A I'm very disappointed with this dock product, it's a stinker.


Hi. Just signed up to share my experience with the dock.

I have the dock and the 35mm Art too. My lens firmware was 1.01, my Sigma Optimization Pro software was 1.2, and I was also getting the notification about a new firmware for the lens (1.02) when I already tried to update it. The problem was the lens wasn't really updated to 1.02 or the software doesn't know. Every time the lens gets reconnected, you might notice that in the lens info, it'll still be 1.01.

This is what I did:
1. Open Sigma Optimization Pro
2. Attach the Sigma 35mm Art lens
3. Wait for the popup saying there's a new firmware (or check firmware)
4. Update and wait
5. Once the update is complete, a popup will show saying the lens is updated and you can remove the lens, DO NOT CLICK "Close"
6. Remove the lens itself from the dock (not the USB cable)
7. Re-attach the lens and it should be updated now

I hope this will work for you!

The tweaks I can do through the dock really works and I'm glad Sigma provides us with this capability. Some will say that lenses should work out of the box without MFA or stuff but I beg to differ. I've been a Nikon user for a number of years and I only used high-end Nikkors. Even then, I had to do MFA in body and some lenses needed different values at different focus distances. In our country, Nikon's service is basically crap (it would take a month even just for sensor cleaning) so I lived with it. It was with the Nikon D800 that I first bought a Sigma lens (the 35mm Art) and I super loved it as it was super sharp and pretty accurate except at really far distances where it does front-focus. I converted to Canon and I knew which 35mm I wanted and also got the dock. It's kinda fun for a DIY guy like me to tinker around and experiment with the lens. One thing I wish though is for Sigma to make the 4 focus distance ranges to be user-specified or at least more varied.

9
Dock was purchased via Amazon, so there's no taking it anywhere.  Perhaps I'll have my friend bring his 35A over or wait and see if the same behavior occurs with the 50A.

10
I updated my USB dock firmware to "1.2.0" and still find it to be useless a product.  Each time I connect my 35A to it, I'm told there is a firmware update for the lens (1.02 I believe) so, I update the firmware and disconnect the lens.  If I reconnect the lens I'm told again about the same update.  If I don't disconnect the lens I'm able to adjust the focus settings, but as soon as I disconnect the lens and reconnect I'm again told about the same firmware update.  If, while the lens is still connected I hit "later" to the firmware update the "customize" button is greyed out and I can't make changes.  I thought at first the issue lay with my laptop, so I used a different computer - same problem.  Perhaps the issue is with the lens BUT - months ago, and after several cycles of this nonsense, I was actually able to set the focus adjustments and use the lens.  If I reconnected it to the dock, I wasn't prompted to update the firmware and the focus settings I changed stayed.  I figured I was out of the water.  I was wrong.  After a few weeks, I reconnected the lens and was again prompted to update the firmware.  Rinse and repeat.  I've had to write down the settings I made so I don't have to attain them every time this problem occurs.

Updating the dock firmware and connecting the lens just now, I'm once again prompted to upgrade its firmware.  Perhaps the lens "forgets" its firmware after a few hours.  Who knows.  While I am looking forward to the 50A and I do love my 35A I'm very disappointed with this dock product, it's a stinker.

11
Third Party Manufacturers / Re: Sigma 50mm f/1.4 Art Gets Reviewed
« on: April 14, 2014, 10:45:36 AM »
It was painful to do, but I sold my 50 f/1.2L two months ago in lieu of this lens.  I'll miss its stubby little body and the fine shots it often produced.  I will miss f/1.2  as well, but I can live with f/1.4.

Sigma's 35mm 1.4A is absolutely fabulous, but in practice it's a bit too wide for what I want from an f/1.4 lens.  I may sell it as well.  I pre-ordered Sigma's new 50 after reading the reviews that have just surfaced.  I'm sure there will be howling about nervous bokeh and lateral CA from some, and in some cases it'll be warranted.  Either way, I'm still going to give this lens a chance, as there's absolutely no way I'd give Zeiss 4k or buy the 50L the third time around.  If this guy turns out to be a dud in any way I'll bury my head in the sand and wait for a possible new fast 50mm offering from Canon.  If that ends up being the case, something tells me I may be waiting quite some time.

12
Portrait / Re: We, The Photographers......Self Portaits..a Who's Who on CR
« on: February 05, 2014, 06:39:34 PM »
That's me and my wife: tough guys.

13
Lenses / Re: A Big Lens Announcement in September? [CR1]
« on: August 29, 2013, 01:55:58 AM »
50mm f/.95!

14
Software & Accessories / Re: Mac Pro Humor
« on: June 13, 2013, 04:02:08 AM »
It looks like a shiny black automotive oil filter.

15
Lenses / Re: What else can I do with my Canon 100mm Macro IS lens?
« on: June 04, 2013, 02:59:12 PM »
This lens is fantastic for portraits, inside or out.  Here's a recent one shot with it:

http://stinkfoot.org/pix/jean_kitty.jpg

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