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Messages - Mt Spokane Photography

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EOS Bodies - For Stills / Re: Brand New 5D2 banding - return?
« on: July 16, 2012, 04:53:28 PM »
You can cause a camera to do strange things with bad exposures.  I've never seen the black band, but have no idea as to your processing. It could indeed be a issue if it occurs in a properly exposed image.
  Here is a low light image from my 5D MK II at ISO 6400.  You will see some light areas in there, but they are just light colored stage props in the background.


EOS Bodies / Re: Should/can Canon keep making its own sensors?
« on: July 16, 2012, 04:45:11 PM »
I see Nikon using Sony sensors, and Sony itself is using its new sensors in its new well-received bodies, and I read people discussing how the Canon sensors seem to be falling behind. 

First you need to get your facts straight.
1. Canon uses sensors from Sony, and they make sensors as well
2.  Nikon designs and subcontracts sensors (not by Sony).  They also buy sensors from Sony.
Should Canon and Nikon stop making  sensors and eliminate all competition that Sony has and remove any reason for improving products?
I believe competition is good.

EOS Bodies / Re: 1DX - Ethernet, USB 3.0 or 2.0 for transfer?
« on: July 16, 2012, 02:01:17 PM »
With the reasonable sized images from the 1D X, card reader speed is not a big issue unless you are actually transferring 64GB of images at a time.  Even my D800 was ok to transfer a 16GB card full of images in a few minutes using a USB 2 reader.  I sold my Sandisk and Lexar firewire readers this spring when I discovered the high prices that were more than I paid 3 years ago.  I had stopped using them.
I will likely get a new computer (Or build One) this fall when Windows 8 comes out.  then I will have a USB 3 reader as well as SATA 3 for my SAMSUNG 256GB SSD.  Its fast, but throttled by my old pc.

Site Information / Re: Sticky topics at the top of the front page...
« on: July 16, 2012, 01:47:14 PM »
I think there is room for reasonable well thought criticism of the forum, I'm not bashing anyone.  I enjoy Dilbert's posts.  I do wish that they wee not so reptitive, sometimes the same post in several threads, but people who live in glass houses ... :)

Lenses / Re: Canon Double Rebates
« on: July 16, 2012, 01:43:43 PM »
Prices usually go up a notch right after the rebates end.  With the world in tough economic times, that might not happen.

I'm a bit suprised at those saying the 5D MK III sensor is the same as the 5D MK II sensor, when anyone who owns one and pushes the ISO up can see a dramatic difference.
Sure, if you shoot in a studio with good lighting at ISO 100, there is no need for capability you do not use, but that does not mean the sensors are the same.  I took dark frames from my 5D MK III when I got it and compared them to my 5D MK II, 1D MK IV, and they were worlds better.  A nice smooth dark frame that was not covered with red dots and banding.  At +3 EV, the MK III was black while the MK II  and 1D MK IV looked horrible.
Its a big advance in sensor technology, with all new on chip electronics, 8 channel readout.  Sure, its the same basic technology as the MK II, the D800, and every CMOS digital sensor ever made, So far, they all use silicon.

EOS Bodies / Re: Canon's Next Full Frame Camera [CR2]
« on: July 16, 2012, 01:25:43 PM »

I've used both 5DII and 5DIII in the studio and within a studio environment I can find literally NO difference in the cameras, the upgraded AF system is useless since I shoot manual focus 99% of the time and the 5DII AF , however ancient, is still perfectly adequate. This is why I have not upgraded to 5DIII - it's almost a pointless upgrade for studio shooters - definitely pointless given the price AND the fact that the 5DII gives identical results. Currently, if I were to upgrade, the only way to go is medium format but still the 5DII is going to be a workhorse for a few more years I think - It's a bloody fantastic camera.
If you do not use the additional capability of the 5D MK III, you will see little difference, if any.  A Brownie 620 film Box Camera at f/8 will work just as well in a studio as a 35mm SLR.
Its only those who want the extra performance that will find the 5D MK III useful.
As to the sensor, you only need take a dark frame from each and boost it 3 EV in processing to see the difference. 

EOS Bodies - For Stills / Re: 1DX silent mode?
« on: July 16, 2012, 12:18:09 AM »
I think that Canon guarantees it to be quiter than a Cannon

1.  Calibrate your monitor, else you are wasting your time to go further.
Here is a start  http://www.luminous-landscape.com/tutorials/understanding-series/und-print-mgmt.shtml
Note, you need to turn off printer management of colors in the printer driver and in photoshop.  Otherwise having photoshop and the printer both trying to manage colors will be bad news.
Alternatively, you can let the printer manage them and turn off photoshop from managing them.  Trying to find the proper settings can be obscure, and the tutorial should help.

Speedlites, Printers, Accessories / Re: Kingston Wi-Drive
« on: July 16, 2012, 12:05:58 AM »
Canon cameras do not write to a USB Hard drive thru their USB port, if thats what you were asking about.  The 1D X has a network port, so if you have a self powered drive with a network connection, that would work.

That is what I was thinking. Well they transfer to a external drive or does it have to have a computer?
You cannot push to anything external from the camera (unless you have the wifi accessory).  A computer with the proper drivers can pull images from the camera.  They are available for PC's and Macs.

Site Information / Re: Sticky topics at the top of the front page...
« on: July 15, 2012, 11:23:23 PM »
The sticky topics at the top do not even try to give a illusion of being automatically managed.  they are for articles of general photographic interest, not intended to have a relation to the forum.
The sidebar on the right is automatically managed and shows topics with a approx 15 minute delay.  It is intended to guide users to current forum topics.
The forum has grown by a huge amount this year, so something is being done right.

Speedlites, Printers, Accessories / Re: Kingston Wi-Drive
« on: July 15, 2012, 11:14:04 PM »
Canon cameras do not write to a USB Hard drive thru their USB port, if thats what you were asking about.  The 1D X has a network port, so if you have a self powered drive with a network connection, that would work.

Software & Accessories / Re: Tripod height?
« on: July 15, 2012, 11:06:23 PM »
I use a Benro C428 Tripod legs - 77.6"  max height and 26 lb rated  4 section tripod to get the height.  It is heavy at 6.2 lbs compared to most tripods that are in use for dslr photography.  I do not think they make a equivalent tripod any longer, I bought two of them when B&H closed them out for $278 each.
They handled my 600mm f/4 with large wimberly head just fine.  I can raise it above eye level just fine with out extending the center column,  The massive legs are almost 1.5 in dia.
The legs telescope to about 26 inches.

Lenses / Re: Canon Double Rebates
« on: July 15, 2012, 08:44:41 PM »
If you do not need a lens, its probably not a good idea.  Personally, I always find a excuse for buying a new lens.  I could buy a 16-35mm l, 70-200mm f/2.8L, and several others that might be part of the deal.

The main thrust of the patent is the variable Apodization filter, and it will be expensive. 
A different translation of the patent:
Especially the present invention is using the shape variable element which made variable form of the interface which two different media form about an optical system, and it is related with the imaging optical system which makes it possible to control the light volume of the light flux which passes an optical system.
The technique of making the apodization effect variable is disclosed by the Patent document 2. In the Patent document 2, by transmissivity's differing, and arranging two kinds of mutually unmixed liquids in a closed space via the interface of an approximate sphere surface, and controlling the output of impressed electromotive force, liquid interface shape is changed and the optical element which made the apodization effect variable is proposed.

There is a ton of very technical calculations in the patent, and it gives me a feeling that it is not something that will be cost effective to build and sell for a acceptable price.
I really don't expect to see one on the market.

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