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Messages - PhotoCat

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1
Software & Accessories / Re: Canon .mov encoder?
« on: August 24, 2014, 08:24:40 AM »
Tks fotoray! I tried that too but the download links were too suspicious...  googleadserver... etc...

2
Photography Technique / Re: 46 Photography eBooks You Can Have for Free
« on: August 17, 2014, 09:25:43 AM »
Tks for sharing! Strobist Lighting 101 is a classic! Need to check out the rest.

3
Lighting / Re: HSS with Einsteins win!
« on: August 15, 2014, 07:57:07 AM »
Ironically, a less sophisticated strobe design is more likely to work better with HSS because the
natural flash discharge tail (flash duration) is longer!

http://www.paulcbuff.com/images/graphics/terms/flashduration.png

This explains why the cheapo strobes from China may actually work well with HSS!
The serious down side for the cheapo strobes is that it will be much more prone to motion blur when your model is in motion e.g. dancing, as the cheapo strobes don't freeze actions well.

4
Lighting / Re: HSS with Einsteins win!
« on: August 15, 2014, 07:40:08 AM »
The following article may shed some light on what is actually happening:

http://wiki.pocketwizard.com/index.php?title=IGBT-controlled_flashes_vs._Voltage-controlled_flashes


According to the article, Einstein E640 definitely works better in full power than in half power in a HSS (hypersync) setup.

5
Reviews / Re: Tony Northrup - D810 vs. 5D Mk3
« on: August 14, 2014, 04:15:37 PM »


Yup, Face-detect metering in viewfinder mode. It was there in D800 too and that was 2 years ago!
It's in the 1D X...

Cool! In addition to non-flash portraits, does the 1DX face-det metering work with e-TTL flash as well? (just curious, since D800 & D4 claim to do that)
Not sure, and I don't think it's documented anywhere, but I would imagine so.  To be perfectly clear - Canon's documentation on the 1D X feature that does this is extremely limited.  All we really know for sure is that it's a 100,000 pixel sensor that detects colors and faces and uses that information for metering and motion in normal viewfinder/ phase-detect AF mode.  What I know from actual use is that it works extremely well for portraits and even wildlife.

I would really appreciate it if u can test it out mackguyver, since u have the 1DX.
Just put a ettl flash on and shoot a bride (or anyone in white clothing with white/light background)
with FEC set to zero with face-det turned on.  If 1DX has this feature, it should correctly expo the face while keeping the white gown really bright.
Test it the other way, hv the model wear black clothing with a dark background. Shoot it again using the
same setting.  If 1DX has this feature, it should correctly expo the face while keeping the dark clothing really dark.  All done outside of live view.
I am just vy curious.  Thanks!
Sure, I can do that.  I'll be taking some portraits tomorrow night and will try it with the setting on and off to see if it makes any difference.

Thanks mackguyver!

6
Reviews / Re: Tony Northrup - D810 vs. 5D Mk3
« on: August 14, 2014, 01:37:12 PM »


Yup, Face-detect metering in viewfinder mode. It was there in D800 too and that was 2 years ago!
It's in the 1D X...

Cool! In addition to non-flash portraits, does the 1DX face-det metering work with e-TTL flash as well? (just curious, since D800 & D4 claim to do that)
Not sure, and I don't think it's documented anywhere, but I would imagine so.  To be perfectly clear - Canon's documentation on the 1D X feature that does this is extremely limited.  All we really know for sure is that it's a 100,000 pixel sensor that detects colors and faces and uses that information for metering and motion in normal viewfinder/ phase-detect AF mode.  What I know from actual use is that it works extremely well for portraits and even wildlife.

I would really appreciate it if u can test it out mackguyver, since u have the 1DX.
Just put a ettl flash on and shoot a bride (or anyone in white clothing with white/light background)
with FEC set to zero with face-det turned on.  If 1DX has this feature, it should correctly expo the face while keeping the white gown really bright.
Test it the other way, hv the model wear black clothing with a dark background. Shoot it again using the
same setting.  If 1DX has this feature, it should correctly expo the face while keeping the dark clothing really dark.  All done outside of live view.
I am just vy curious.  Thanks!




7
Reviews / Re: Tony Northrup - D810 vs. 5D Mk3
« on: August 14, 2014, 10:16:44 AM »


Yup, Face-detect metering in viewfinder mode. It was there in D800 too and that was 2 years ago!
It's in the 1D X...

Cool! In addition to non-flash portraits, does the 1DX face-det metering work with e-TTL flash as well? (just curious, since D800 & D4 claim to do that)
 

8
Software & Accessories / Stand alone version of EOS Movie Plugin?
« on: August 14, 2014, 10:05:17 AM »
Does anyone know if a stand-alone version of EOS Movie Plugin exists?
I don't have Final Cut Pro but would like to find a high quality transcoder to convert
Canon .mov to a high quality editable format. 

Can the EOS Movie Plugin run on its own without needing the expensive Final Cut Pro?

Thanks!

PS: Camera is 5D mark ii

9
Software & Accessories / Canon .mov encoder?
« on: August 14, 2014, 09:53:16 AM »
My experience has suggested that the Canon in-camera H.264 .mov encoder has pretty good quality in playback
and an acceptable compression ratio for archive purposes. (5D Mark ii experience here)

Does anyone know where to download this Canon .mov encoder for re-encoding edited Canon footage?
A virtualdub plugin would be nice. Thanks!

10
Reviews / Re: Tony Northrup - D810 vs. 5D Mk3
« on: August 14, 2014, 08:56:30 AM »


I agree i couldn't  imagine paying money to watch their 9 hours of video they are peddling at the end!

on the cameras one thing that really interests me is the face detect metering the d810 had man that awesome i seriously hope canon do something similar.

Yup, Face-detect metering in viewfinder mode. It was there in D800 too and that was 2 years ago!

11
EOS Bodies / Re: Patent: Dual Pixel Phase Detect AF While in AI Servo
« on: August 12, 2014, 01:06:49 PM »
Wow, this is really happening!
AFMA hopefully will be eliminated altogether, now Canon can compare the results between
dual pixel sensor and normal phase-det sensor!!

12
EOS Bodies - For Stills / Re: Quick and Dirty AFMA
« on: August 10, 2014, 10:24:45 PM »

It shouldn't be dependent on light level, per se, except that with brighter light, you and/or the camera are typically using a smaller aperture, resulting in more depth of field, so small errors in focus have less of an apparent impact on the photographs.

You should always do AFMA in manual or aperture value mode, with the lens wide open.  Otherwise, you're likely to undercorrect.

I used full manual operation all the way with aperture kept at f1.8 for my 85mm for example. Only shutter speed and ISO was changed. It was just a feeling that light-level had a bearing on AFMA value but I have no scientific proof. Could be something else but definitely not aperture or DOF related.

13
EOS Bodies - For Stills / Re: Quick and Dirty AFMA
« on: August 10, 2014, 10:40:23 AM »
"get it zeroed in with 4-5 iterations"  in 2 minutes

Wow u r vy skilful on this candc! Hats off!

14
EOS Bodies - For Stills / Re: Quick and Dirty AFMA
« on: August 10, 2014, 09:57:09 AM »


BUT, even with Canon lenses, what is spot on with recommended AFMA distances can be a couple of points off when doing portrait work.  Really only critical when shooting below f/2.2, but annoying in such cases.

And I think over time, maybe with temperature and humidity, values change.

Constant battle, ain't it?

Same experience here as I often shoot portraits at f2.0-f2.2. I was guessing that was due to higher outdoor light level but not sure.  Take the filter off  and the AFMA value will shift a few points too.

Now Canon has got the dual pixel sensor focusing technology. In theory, future cameras should be able to auto calibrate the phase dect focusing while u shoot!  This can be done by the camera constantly comparing the results of the conventional phase dect focusing module with that of the dual pixel sensor phase dect circuit, and
making automatic adjustments to AFMA or better yet a full blown Canon in-house type calibration.

Hopefully we will eventually get rid of  manual AFMA altogether :)

15
EOS Bodies - For Stills / Re: Quick and Dirty AFMA
« on: August 10, 2014, 09:27:42 AM »

ps. i used this method to adjust a 70d and 50L combo yesterday. i was able to get it adjusted and focusing with a +13 afma value in a matter of 2 minutes or less without any computer.

2 minutes is really impressive for a value of +13 candc! How many iterations did u go thru during the 2 minutes?

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