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Messages - tron

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871
Canon General / Re: Desired fantasy gear
« on: May 26, 2013, 03:17:46 PM »
I'd like to see an affordable F4 super-telephoto from Canon.....well we are talking fantasy arn't we?
YES! And light too  ;D

872
EOS Bodies / Re: Make yourself happy
« on: May 24, 2013, 12:17:11 PM »
.
Tempting, but I'm waiting for the SL1X.

I expect rumors should be popping any day now.
Hmmm, you'll wait!

SL1MkII
SL1MkIII
SL1MkIV
SL1X

 ;D  ;D  ;D

873
Lenses / Re: When is the New 100-400 Coming?
« on: May 22, 2013, 12:33:22 PM »
wasn't this supposed to be out last year?  the year before?  the year before?  the year before?  the year before?

lol
Nooooo, it is supposed to come the next year, or the year after it, or 2 years after the next year, or ...   ;D

874
EOS Bodies - For Stills / Re: 1DX, 6D and 5D3 RAW files
« on: May 20, 2013, 08:46:00 PM »
May I take advantage of this thread - instead of opening a very similar one - and ask to include EOS 6D in  the equation.

Can someone comment on its raw files too (in relation to 1Dx and 5D3 raw files) ?

Thanks.

875
EOS Bodies - For Stills / Re: F/8 Autofocusing impressions
« on: May 20, 2013, 02:12:13 PM »
That's the problem with 3rd party manufacturers.

I'd say this is the problem with *2nd* party manufacturers (I guess the 1st party is us, the customers) - it would be no surprise if Canon, Nikon or whatever changes specs and didn't open their protocols just to +1 their own equipment. Luckily, the 3rd party just got smarter and Sigma now has an usb dock for lens fw updates...
That's a very welcome addition! Let the (lens manufacturers) competition begin  :)

876
EOS Bodies - For Stills / Re: F/8 Autofocusing impressions
« on: May 20, 2013, 01:05:11 PM »
That's the problem with 3rd party manufacturers. I have a nice Tokina ATX-28-70 f/2.8 which stopped working since my analog days Canon 50E. It continues to work fine on the old 6xx series and my EOS1n though!

Regarding teleconverters however I guess Canon could have done better.

Even if not regarding the f/5.6 constraint at least regarding the design that limits the Canon TCs use on specific few lenses.

877
Canon General / Re: Desired fantasy gear
« on: May 20, 2013, 06:26:24 AM »
EF-S 400 4 IS

Why not try the EF 300mm f/4L IS, as it is the equivalent of 480mm on a 1.6x crop body?
Maybe because it would be the equivalent of much more mm (actually 640) on a 1.6x crop body and some need it?

No, a theoretical EF-S 400mm lens on a 1.6x crop body would be the equivalent of 400mm.  Note: EF-S lenses, which is what the OP requested, can only be mounted on a 1.6x crop body, so there is no crop factor.
Actually there is crop factor:
EF-S10-22 gives the equivalent of 16-35 for example.
The difference is that EF-S lenses cannot be used on full frame and there is no spare glass in the sense that the imaging circle is not big enough for full frame. So the quality may (or may not depending on the lens) suffer at the very edges.


878
EOS Bodies - For Stills / Re: F/8 Autofocusing impressions
« on: May 20, 2013, 06:21:12 AM »
Finally I found time to test my 5D3 with a 300mm f/4 (non-iS) lens with EF2X II teleconverter.
The test was inside my house and not much light.

It worked fine  :)
More information about "not much light"

Shutter: 1/50 Aperture: f/8 ISO: 25600

According to an EV calculator I found it worked fine to 3.6EV.

Next step would probably be to use half the lights I used...

879
EOS Bodies - For Stills / Re: F/8 Autofocusing impressions
« on: May 20, 2013, 05:21:30 AM »
Finally I found time to test my 5D3 with a 300mm f/4 (non-iS) lens with EF2X II teleconverter.
The test was inside my house and not much light.

It worked fine  :)


880
EOS Bodies - For Stills / Re: F/8 Autofocusing impressions
« on: May 19, 2013, 12:00:14 PM »
I was surprised that Canon hadn't included f/8 AF on that body right from the start. Perhaps they needed to iron out some issues first, I don't know.
+1 Same with the 1DX. As it was replacing 1D4 (at least!) it was very strange that they omitted this feature initially.

881
EOS Bodies - For Stills / Re: F/8 Autofocusing impressions
« on: May 18, 2013, 11:42:29 AM »
I don't like being an "early adopter" (although this firmware update is not exactly a totally new thing), but reading these comments has convinced me to go ahead and install it.
Firmware seems fine :)  Just read the instructions. The part at the end that says to remove the battery for a few seconds seems new to me. I remember members of this forum mentioning the same thing for the 7D upgrade but I do not remember this instruction for the 5DMkII firmware updates.

(Or there was and I simply omitted it and I didn't know it!! )

883
EOS Bodies - For Stills / Re: F/8 Autofocusing impressions
« on: May 17, 2013, 01:21:57 PM »
Someone please explain this f/8 brouhaha to me: my 5D3 + Kenko 1.4x tele-extender + 400 & 70-300 auto-focus (at f/8, pre-firmware update) all day long. I just downloaded the firmware update and will install it later today, but I've been auto-focusing just fine at f/8 for some time. Am I missing something?

You are missing ... Canon teleconverters which report the correct maximum aperture to camera.

When you put kenco with your say 400 f/5.6 lens does it report it as having a maximum f/8 aperture? I guess not! It still reports it as f/5.6!

You have effectively a 1.4X400 = 560mm f/8 lens but the camera thinks it is connected to a f/5.6 maximum aperture lens and tries to autofocus!

When my Kenko is attached to my EF 400 f/5.6 lens, the 5D3 tells me that the max aperture available is f/8. It auto-focuses just fine (I used it that way between my last post and this post). The EXIF data in Lightroom lists the lens as the EF 400 f/5.6, but the images display the correct EXIF data: f/8. So, tron, maybe I'm still not seeing something, but this all jives.
That's interesting for Kenko! However, everyone who had Canon teleconverters could not have this option!

So as I said before it wasn't possible with Canon teleconverters...

884
EOS Bodies - For Stills / Re: F/8 Autofocusing impressions
« on: May 17, 2013, 10:55:03 AM »
Someone please explain this f/8 brouhaha to me: my 5D3 + Kenko 1.4x tele-extender + 400 & 70-300 auto-focus (at f/8, pre-firmware update) all day long. I just downloaded the firmware update and will install it later today, but I've been auto-focusing just fine at f/8 for some time. Am I missing something?

You are missing ... Canon teleconverters which report the correct maximum aperture to camera.

When you put kenco with your say 400 f/5.6 lens does it report it as having a maximum f/8 aperture? I guess not! It still reports it as f/5.6!

You have effectively a 1.4X400 = 560mm f/8 lens but the camera thinks it is connected to a f/5.6 maximum aperture lens and tries to autofocus!

885
Lenses / Re: Poll: Most Wanted New Lenses of 2013.
« on: May 17, 2013, 09:07:07 AM »
I would LOVE to see the return of DO lenses, Got to use a 400 f/4 DO today and it was a joy, the contrast/color is a bit off but super easy to fix in post.
+100000 !!!!

I would be interested but this lens' IQ has been controversial.

Some say it is very good, some not (some determine 2003 as the make year that made the difference.

I remember correctly at the-digital-picture site the 400DO didn't take the teleconverters well (IQ wise).

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