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Messages - Drizzt321

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Canon General / Re: Canon Refurbished Sales
« on: March 14, 2014, 07:23:42 PM »
Hmmm...not to derail the thread too much, but anyone bought from Specifically a 70-200 f/2.8 IS v2 with their 7.5-8 rating? While I trust them (since they're really LensRentals sales arm), is any tiny bits of front-element scratches really as minor as they imply?

Technical Support / Re: Newbie needs help: Tamron 150-600mm
« on: March 14, 2014, 02:13:43 PM »
What aperture? The Tamron is quite good for the price, however to get best sharpness you typically have to stop down to f/8-f/11 depending on the focal length.

Plus, while 1/640s is reasonably fast, if you are hand holding you need to use excellent technique to avoid a tiny bit of camera shake. Really, while a monopod can help with the right technique, a tripod is often best as it provides the stability needed for super-telephoto lenses.

Ok, $150 for a 4"x6" is ridiculous. Want to bet he prints them out at Walgreens?

Business of Photography/Videography / Re: RIP Calumet Photo
« on: March 13, 2014, 05:48:59 PM »

Not good news, but not a surprise either:

- A

Good link. Looks like the FB page has disappeared now. I checked it a few hours ago to see if there was any announcement there would be any fire sales.

When we start seeing a good selection of lenses in this mount I think we can agree Sony will finally have a mount to stick with.

Hopefully this new camera will have improved RAW file format & shutter issues fixed.

Business of Photography/Videography / Re: Calumet U.S. Bites the Dust
« on: March 13, 2014, 01:54:54 PM »
I'm shocked I tell you, shocked.

Yea, personally the Hollywood location was OK. I much preferred Samy's which had much more stuff and more locations and much more a feel of a local (well, local region) camera shop.

Business of Photography/Videography / Re: Calumet U.S. Bites the Dust
« on: March 13, 2014, 01:29:57 PM »
Wow. And the website is completely down. They even took the servers offline!

Hmmm...not to sound too opportunistic, but I wonder if that means my local store will be having a liquidation/fire sale. Could be good to get a new lens, or maybe some stands/backdrops for cheap.

Lighting / Re: How to get studio light on the fly ...
« on: March 12, 2014, 08:17:49 PM »
That's nice and all...but he still has a ways to go

Eric Schwabel is... the Human Light Suit

Third Party Manufacturers / Re: A7R Lust
« on: March 11, 2014, 07:25:56 PM »
Of course, there's a big light leak issue (see Roger's take).


EDIT: Realized I screwed up the url BBCode, fixed now

While I rarely shoot setups, I took a portraiture class and the instructor used a randomly cut up square of plastic held a distance in front of a continuous light to cast shadows on the background. Add gel(s), and you can change the background color/texture of a gray/white backdrop pretty cheaply, without having any specific wrinkles/etc.

Third Party Manufacturers / Looking for a Pentax 645N
« on: March 07, 2014, 07:52:07 PM »
So, since there's no real buy/sell forum, I'm putting a shout out here that I'm looking to buy a Pentax 645N. Preferably with 120 back & lens. Right now things are a bit pricey on ebay (along with the potential risk) and doesn't have really much in the way of bodies & B&H has them, but at even a small premium over Ebay I'm still hoping to find something cheaper. Anyone?

EOS Bodies - For Stills / Re: 5D MkIII buffer
« on: March 07, 2014, 12:47:01 PM »
I have to say that I do not agree about the SD slot being crippled.  If the camera has been designed to use UDMA 7 CF cards it should have also been designed to accomodate UHS-1 SD cards.  To the best of my knowledge the two specifications came out at about the same time. (Nov 2010 and May 2010 respectively).  As Canon built the ability to save file to the two cards into the camera they should have made it a realistic proposition.

For anyone following this thread, and who is interested, I have formatted my UHS-1 SD cards and this makes no discernible difference to the time taken to the number of burst shots achievable or the time taken to clear the buffer (compared with the cards formatted in my laptop).

Not to worry, the 5DIII is still a brilliant camera.  Pity I can't use it properly!

That is a reasonable point, but unfortunately Canon did not design it that way. The 5D mk3 does not support the faster UHS-1 (ultra high speed) standard for SD cards, which means that no matter which SD card you use the write speed cannot exceed 20MB/sec. What's worse is that if the 5D mk3 detects the presence of an SD card it sets the default write speed to the slower card - so the write speed of your CF card will be limited too. I shoot a lot of sports, and when I bought by 5d mk3 initially I accepted the idea that I needed two cards - in case there was a problem with one of them or so I could keep a RAW and JPEG copy of each file on separate cards. However, I was continually having problems with the buffer filling and I was not able to keep up with the action. Now I have removed the SD card completely and since then I have not had a problem. In my opinion having an SD clot on this camera is a complete waste of space - they would have done better to make two CF slots available.
I use the sandisk UDMA6 CF card which is rated at 90MB/sec. Never tried a UDMA7 card but at the moment I don't need it.

Not so! The SD slot is useful to have a Eye-Fi card and/or other SD card that has MagicLantern installed ;)

I'm not 100% certain on the timing, but at the design & prototyping time I don't think any UHS-I hardware was available, even for testing. I could be wrong about that though. The other question to ask is, can the DIGIC handle 2 very fast cards at the same time? I'd be willing to bet that the DIGIC doesn't even have enough high-speed data lines to support UHS-1 + CF.

EOS Bodies - For Stills / Re: 5D MkIII buffer
« on: March 06, 2014, 07:01:36 PM »
Like you I am a bit paranoid about losing photographs which is why one of the selling points of the 5DIII for me was the ability to write files to two separate cards.  Pity that this function is effectively crippled!  Any way, I'm off to do a low level format on my SD UHS-1 cards and then try them in the 5DIII to see if this makes and difference.  As you say, the proof of the pudding is in-camera performance not in a computer.

And yet again, it needs to be stated that it's not crippled. The functionality works 100%, and as designed based on the technology during the design.

There's nothing stopping you from taking the extra few seconds while it writes to the SD card before taking that 6th & 7th bracketed shots. Nothing is stopping you from that except yourself. The camera will let you take the last shots as soon as the buffer clears enough. Try it. I'm guessing the way you shoot the bracketed shots is via continuous shutter? Set it up, hold down the shutter, and at the end you'll have a pause, and then it'll take another shot (as soon as the buffer clears up).

EOS Bodies - For Stills / Re: 5D MkIII buffer
« on: March 06, 2014, 05:04:50 PM »
mackguyver,  Class 10 write speed is not 30MB/s it's a minimum of 10MB/s.  I have dome a lot of work testing SD and microSD cards mainly because I was stupid enough to buy a SanDisk Ultra card which has 30MB/s emblazoned in large letters on the front.  I was rather perplexed with the slow write speeds that I got so I tested the card.  I used CrystalDiskMark, DiskSpeed.exe, h2testw and Bench32.exe.  The real time write speeds in Windows 7 varied enormously but were mostly less than 10MB/s and averaged 4 to 5MB/s.  The ONLY write speed result from all the tests that I carried out was 10.07MB/s from CrystalDiskMark.  Needless to say SanDisk say that this single marginal and isolated result means that the card is within specification.

CrystalDiskMark 3.0.3 x64 (C) 2007-2013 hiyohiyo
                           Crystal Dew World :
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]

           Sequential Read :    44.554 MB/s
          Sequential Write :    10.071 MB/s
         Random Read 512KB :     0.000 MB/s
        Random Write 512KB :     0.000 MB/s
    Random Read 4KB (QD=1) :     0.000 MB/s [     0.0 IOPS]
   Random Write 4KB (QD=1) :     0.000 MB/s [     0.0 IOPS]
   Random Read 4KB (QD=32) :     0.000 MB/s [     0.0 IOPS]
  Random Write 4KB (QD=32) :     0.000 MB/s [     0.0 IOPS]

  Test : 1000 MB [G: 91.1% (54.2/59.4 GB)] (x1)
  Date : 2014/03/06 18:46:48
    OS : Windows 7 Home Premium SP1 [6.1 Build 7601] (x64)

I think that it is of interest that three Samsung Class 6 SD cards gave write speeds of 14-15MB/s and my Toshiba Class 10 microSD card gave a write speed of 14.6MB/s.

Moral:  Don't believe the hype about SanDisk being a top class manufacturer!

The other question to the card freshly low-level formatted? Or has it been written to previously? With SD cards, you need to low-level format (e.g. clear out all the previously written blocks) if you want to get the highest possible write speeds. Otherwise, it has to go through the ERASE->PROGRAM cycle to write, which is a lot slower than just PROGRAM if you've already performed the ERASE. CF cards too, although with UDMA7 & Trim, you don't necessarily need to do this as, like with SSDs, the camera can tell the card controller that it's deleted a file, and which LBAs, and so it can pre-ERASE those by itself.

Black & White / Re: The TRI-X 'look'...
« on: March 06, 2014, 01:40:19 PM »
I love me some Tri-X. Discovered it when I started shooting 120 film this past year. Don't have any handy, but if I remember I'll pull out some scans when I get home :)

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