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Messages - WillThompson

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16
EOS Bodies / Re: It's here! Firmware version 2.0.3 for the EOS-1D X
« on: January 09, 2014, 03:37:32 AM »
I see it took 4 tries to get it ready for the masses, v2.0, 2.01, 2.02, & now v2.03!

17
Software & Accessories / Re: Canon Shutter Actuation App for Mac
« on: November 18, 2013, 01:53:19 AM »
When you remove the battery the first thing the camera does after detecting that the battery door is open is to shut itself down properly.

Battery door? 1DX what battery door or any other real camera "1D series"???

18
EOS Bodies - For Stills / Re: Resetting the shutter count
« on: November 11, 2013, 12:35:29 AM »
I purchased a 6D from Canon Refurbished and actution was 17 using a Apple Mac app called "Shutter Count" so I was pretty excited thinking my body was new. But later I realized my files started at _MG_9025.CR2. So now I'm annoyed.

So much utter BS out there as to shutter count.

9025 is NOT THE SHUTTER COUNT it is the sequential file number left over on your card from another camera.

A 4 digit number will never be used to represent a 50,000+ count shutter!

Only one canon camera series can give the user a correct approximate shutter count and that is the 1DX/C but rounded to the nearest 1000 clicks.

Yes many a software out there boast but only Canon depot software can give you the correct activations and then the currently installed shutter count.   

19
EOS Bodies - For Stills / Re: Is it flare, internal reflections or a ghost
« on: September 27, 2013, 07:04:16 PM »
I tried several lens/camera/exposure combinations this morning and found only my most expensive 24-105 Canon L lens produced this problem and only when I have (relatively) bright light in the subject.

Has your 24-105 been in for the recall for the lens flair problem?

When this lens first came out there was a recall and I sent my lens to canon and they exchanged it for an updated lens.

Will T.

20
Canon General / Re: Patent: EF 24-70 f/2.8L IS
« on: September 22, 2013, 12:26:46 AM »
what's wrong with 18-55 IS?  ::)

No "L"!

21
Lenses / Re: Canon EF 300 mm F/2.8 L IS USM Lens with a 2X III TC
« on: September 21, 2013, 11:49:02 PM »
When it comes to TC's the misnomer is that a TC will degrade image quallity, this is not true when using a good TC,  it only magnifies the flaws by 1.4X or 2X.

The MKIII Canon TC's are very good optical quallity VS privious models.

Garbage in = 1.4-2.0X the garbage out!

22
EOS Bodies - For Stills / Re: 5D3 or 1Dx
« on: September 01, 2013, 01:18:03 PM »
My 5DmkIII is the best point and shoot/compact camera I have owned.

My 1DX is my go to camera for pro work, better AF, better AE. 

With the 5DmkIII too many times the exposure is off in complex fast changing situations.

The 1DX being able to see AE in Color is a huge advantage!

23
I'm on the road pretty much every week and carry just one charger to cover everything except my laptop.   I've been using the Gomadic system for years.  Once you have the charger, all you need is the modular tips for the specific device.   I current use this quad unit which includes international adapters:
http://www.gomadic.com/quadcharger.html

You can buy direct or from Amazon.

To bad it only works with 5 volt devices!

24
So you're in a hotel room and have a dozen devices to plug in, each of which will occupy an entire outlet.  What do you do, particularly when you have to pack whatever you intend to use?  Assume please standard North American sockets.

Jim

How many of your chargers use a external power supply?

I have 6 four gang AA chargers that all run on 12 Volts so I was going to just get one 6 amp 12 volt switching PS to run them all with one 117 VAC plug.  Much lighter than carrying six trainsformers.

You can do the same with other chargers that need the same DC voltage.

Will T.

25
Lenses / Re: 70-200mm f2.8L IS II Repair
« on: August 16, 2013, 01:10:46 AM »
and Canon will not sell them parts.

Not true in the USA, anyone can order repair parts from the Canon USA parts dept.

I have ordered and recived the front lens element for both the TSE 45mm f2.8 & EF 14mm f2.8 L USM as well as many other strange parts for frankenlens projects.

Will T.

26
EOS Bodies / Re: body for interior low light suggestion
« on: August 10, 2013, 10:52:19 PM »
The 1DX is 1 stop better in low light!

27
Does this mean they f**ked up the previous update to support 200-400 1.4x? So they released a patch to fix previous firmware update?

YES!

28
A EOS lens is only functioning to specification when powered up with a body.

The aperture setting is not a passive but an active device!

Is that metered manual or auto exposure?

In auto the camera can skew both settings by 1/6 or is that multiple 1/10's of stops with no indication of f-stop or shutter speed change. (Not sure of the sub step values that Canon uses 1/10 vs 1/6, It has been a long time since I went to Canon school)

So answer me this, how many stops difference is f1.2599 from f1.4142??????

29
Lenses / Still only 1/3 stop difference! (When using 1.3 stop steps)
« on: July 14, 2013, 02:07:52 PM »
That difference is best represented as 1/2-stop, whether or not the settings of the camera result in that complete 1/2-stop being used.

Still not correct.


With a 1/2 stop setting f1.2 is actually f1.1892.

With a 1/3 stop setting f1.2 is actually f1.2599.

With both a 1/2 & 1/3 stop setting f1.4 is actually f1.4142.


This difference is why the 1/2 stop setting between f1.4 & f2.0 is f1.7 not f1.6 or f1.8 as it is less confusing due to larger numbers allowing better numeric distinction between settings.

On a side note,

Is a f1.2 lens actually 1/6 stop wider when set to 1/2 stop increments when shot wide open???

30
Hmm...right, it's a 1/2 stop, sorry.

No it is 1/3 stop!

The 1/3 stop steps are: 1.0 1.1 1.2 1.4 1.6 1.8 2.0 .........
No, it's both, or if you prefer, neither.  On the half-stop scale, f/1.2 is 1/2-stop wider than f/1.4, but on the 1/3 stop scale, f/1.2 is 1/3-stop wider than f/1.4.  See the wikipedia page on f/stops

Mathematically, f/1.2 really is closest to a 1/2-stop, since 21/2x0.5 = 1.1892), whereas 22/3x0.5 = 1.2599, which personally I'd round to f/1.3.

Not on a canon camera that actually uses 1/6 stop increments, when setting exposure.  The camera uses the standard 1/2 stop nomenclature but uses actuall 1/2 stop increments when set to 1/2 stop steps and the same goes for 1/3 stop steps so the steps will be exactly 1/3 or 1/2 depending on the camera setting.

This means that the difference between a setting of 1.2 and 1.4 will be different depending on camera settings.

In the real world there is 1/3 stop difference as apposed to the representational of 1/2 stop steps!

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