October 20, 2014, 07:57:49 AM

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Messages - Lee Jay

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241
Lenses / Re: I'm terrified of my EF 70-200 f/2.8 IS II
« on: September 05, 2014, 03:57:07 PM »
I carry a 5D, 24-105, 35/1.4, 15mm fisheye, 580ex, and a 70-200/2.8L IS II with 2x TC III all in a ThinkTank ChangeUp.

I carry a lowepro 650 All weather bag.  It could carry 6 of these lenses, and a laptop.  And then you'd never lift it off the ground.  It is a great bag, but can easily be packed to be too heavy.  I have a wheeled art case that holds it and will often use that when I am "packing heavy"

I carried everything I said all day every day all around Orlando for 12 days straight.  And I'm a little guy.

242
Third Party Manufacturers / Re: And what does Canon do?
« on: September 05, 2014, 03:34:18 PM »
My Rebel T2i is good enough at low ISO.

Clearly, you are neither dramatically underexposing nor pushing your shadows several stops.  Get with the program!!

 ;)

Actually, I do sometimes.  This is an example I use for something else, but this was shot in raw, many of the raw pixels in the ceiling were blown so it isn't underexposed, I just had to push the shadows a lot.  This was shot on the T2i.


243
Third Party Manufacturers / Re: And what does Canon do?
« on: September 05, 2014, 03:26:24 PM »
I need the sensor to be as good as possible, but at high ISO, not low ISO.  My Rebel T2i is good enough at low ISO.

244
Lenses / Re: I'm terrified of my EF 70-200 f/2.8 IS II
« on: September 05, 2014, 03:24:54 PM »
I carry a 5D, 24-105, 35/1.4, 15mm fisheye, 580ex, and a 70-200/2.8L IS II with 2x TC III all in a ThinkTank ChangeUp.

Must be tight.   :o

Yeah, but it all fits, and when you take the camera out for use, the bag is largely empty.

245
Third Party Manufacturers / Re: SIGMA 150-600!!
« on: September 05, 2014, 10:20:30 AM »
At almost 3kg, it might be too heavy for me to use handheld all day at airshows, which would be my planned use.

246
Third Party Manufacturers / Re: And what does Canon do?
« on: September 04, 2014, 11:21:32 PM »
They don't mention autofocus anywhere. Maximum ISO is 2000? 30mm sensor? It weighs five pounds and costs how much?
They may as well be selling a film camera.

It can effectively go way above 2000 and it does have fast contrast detection AF.

247
Third Party Manufacturers / Re: And what does Canon do?
« on: September 04, 2014, 11:19:44 PM »
Good grief. One HUNDRED frames per second. And people complain about 50mp image sizes...it doesn't matter if all you have is 19mp, at 100fps full RAW stills your going to eat all the disk space on the planet in less than a year! :P

The raw files are wavelet compressed.  Compression is selectable but 9:1 or so is not uncommon.  And you don't have to shoot at 100fps.

And, an EPIC Dragon with all the required trimmings is going to be in the $40-50k range, without lenses.  A Scarlet is cheaper but can't shoot 6k at anywhere near 100fps.

248
Lenses / Re: I'm terrified of my EF 70-200 f/2.8 IS II
« on: September 04, 2014, 10:18:32 PM »
I carry a 5D, 24-105, 35/1.4, 15mm fisheye, 580ex, and a 70-200/2.8L IS II with 2x TC III all in a ThinkTank ChangeUp.

249
EOS Bodies / Re: A Rundown of Canon at Photokina
« on: September 04, 2014, 02:28:17 PM »
Given the eye's resolving power and the average distance people sit from a TV, you need a bare minimum of 120" screen size to even physically see any difference at all - and even in that case, the difference is minute that would rarely be detected.  In reality, 4k is only useful for large commercial theaters which have screen sizes many times that size.

1)  You obviously haven't done the math.
2)  The "size" that matters is the angle your display subtends in your field of vision.  The computer screen I'm presently typing on subtends a larger angle in my vision than the big screen in a movie theater when I'm sitting about 1/3 of the way back from the screen.
3)  Even if what you said were true, which it isn't, what would prevent me from just sitting closer?
4)  Even if I don't deliver in 4k, 4k capture would make it far easier to deliver sharp, stabilized and cropped full-HD than full-HD capture does.

250
EOS Bodies / Re: A Rundown of Canon at Photokina
« on: September 04, 2014, 01:33:14 PM »
We had a pro videographer for a week-long shoot at work a few weeks ago.  Camera choice?  7D.  He did have an assistant who was using a RED Scarlet.

251
EOS Bodies / Re: A Rundown of Canon at Photokina
« on: September 04, 2014, 11:29:26 AM »
Thanks for the explanation. So basically the ability to pull high res still from a video feed is really not as exciting as it sounds. You are best to choose either slow frame speeds for smooth video or shoot photos if you want great stills.

Well, that depends.  Even 4k frames are only 8MP and 16:9 aspect ratio.  Pulling a 4:5 aspect ratio still from those is going to leave you with something like a 5.8MP still - not bad, but not great compared to an actual still.  It's also probably going to be pulled from a pretty highly compressed source (video), not a less compressed (JPEG) or raw source.  However, you might be able to shoot them at 30fps which is something even a 1Dx can't come close to doing.

So, it depends.

252
EOS Bodies / Re: A Rundown of Canon at Photokina
« on: September 04, 2014, 11:05:43 AM »
Quote
I'm not a video guy and don't quite understand this one.  If you are shooting at say 30fps (or whatever) wouldn't an extracted still have a relatively slow shutter speed of say 1/30 sec or something only marginally faster?

Video is often shot at "180°" shutter, which means at a shutter speed equal to twice the frame rate.  So, 30fps video would be shot at 1/60th.  But this is done often, not always, and it's certainly not required.  You can shoot 30fps at 1/4000th if you want to.  The video tends to look jumpy but the stills have much lower motion blur.

This is why shooting video and expecting to extract stills isn't a great idea unless you're planning one or the other uses for the video.  If you plan to use the video for video, shoot at slow shutter speeds and wider framing.  If you plan to extract stills, use faster shutter speeds and tighter framing.

253
There you have it- definitely no 4K in the 7DII if anyone was still holding out hope.

I was thinking the opposite.  This looks more like additional ways to segregate the Cinema line from the consumer line if they start pushing 4k down the ladder toward the consumer products like the 7D replacement.

254
EOS Bodies / Re: A Rundown of Canon at Photokina
« on: September 04, 2014, 08:37:36 AM »
Also, while I assumed you meant a rectilinear UWA zoom, Canon also has the excellent (unique and innovative, too) 8-15mm fisheye zoom.

I think they messed that one up.  When Pentax did a zoom fisheye for full-frame, it was a 17-28.  When they did it for crop (also available as a Tokina), it was a 10-17.

The Canon is basically a circular fish and a full-frame fish in one lens for full-frame.  I have no need of such a thing.  For crop, it's more interesting as it's more of a full-frame fish to a rectilinear (with defishing) ultrawide.  That's what I actually wanted, but for full-frame.  So, to me, it should have been something like 15-25.  As it is, it's too slow, too wide, and too expensive to be interesting to this fish lover, so I kept my (at the time) $370 optically excellent Sigma 15mm/2.8 fisheye.

255
EOS Bodies / Re: A Rundown of Canon at Photokina
« on: September 04, 2014, 08:33:33 AM »
New battery?  Why not the battery for the current 7D and 6D?  Why does Canon make slight variations of batteries within the same families of cameras (I can't use my s90 battery in my s100)?  It wouldn't be to make money on unnecessary battery/charger purchases, would it?

My guess, based on the name and Canon's history of adding an "N" to the end of a battery name is that this battery will be compatible with the older version, and all of this is to comply with new safety rules in Japan on the charger and battery.

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