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Messages - Halfrack

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Canon General / Re: Do More Mega Pixels translate in a richer photo?
« on: February 27, 2015, 08:50:00 PM »
-Higher MP in the 33x44mm chip size is actually more helpful, due to the pixel sites being larger than they are in a 35mm FF 24x36mm - bigger pixel sites can equal better light capturing
I understand that you referred to the 50 megapixel medium format cameras, compared to full frame 50 megapixel Canon in 5DS 5DSr.

Yes, but 33x44 is the crop version of medium format (like the 40mp microlensed Kodak chip, etc) most the Dalsa/Kodak stuff is 36x48.

As for the 24"x36" prints, the 50MP will have a much better output, as you're translating ~272 pixels to 1 inch of paper, so close to the 300dpi that your eye can see.  I've had folks pull out a loop and flashlight to peak, the files really hold up well.

I'm in line to rent the 5DsR once it's out, and will compare it to the Pentax 645Z ad the Hasselblad H4D-50.  It's one of those where depending on the situation, each has their strengths.  E-TTL should be huge, with the B1's and such :)

Canon General / Re: Do More Mega Pixels translate in a richer photo?
« on: February 27, 2015, 04:15:25 PM »
Yes, in a few different ways:

-Higher MP allows you to crop in a lot more - turn what would have been a much smaller image, into one with more detail

-Higher MP also allows you to print larger at equal dpi - at 300 pixels per inch, you get ~ 2x the size

-Higher MP in the 33x44mm chip size is actually more helpful, due to the pixel sites being larger than they are in a 35mm FF 24x36mm - bigger pixel sites can equal better light capturing

Pag, that is the secret to selling anything - knowing your buyers.  Alain Briot wrote about this on Luminous Landscape several years ago and I'd share the link but their site says I'm unauthorized to view the page.  Since I don't like posting non-public links, I'll summarize. 

LuLa just redid their site, so a lot of the old links are dead.  Was it this one?

EOS Bodies - For Stills / Re: Am I expecting too much off my camera?
« on: February 23, 2015, 01:18:27 PM »
Your 7d and 6d should be able to be tuned happy.  The 1DIIn is not going to get better, adjustments didn't show up until the 1DIII (I think... i'm at 1 cup of coffee so YMMV).

EOS Bodies - For Stills / Re: I just want a stills camera.
« on: February 23, 2015, 01:13:58 PM »
You may not need video, but are you using features that are accomplished by having the video component?

- Live view gives a great method to frame, focus, expose all remotely, either tethered or wireless.  No video = no live view

- 10x magnification - shooting macro and need to be sure it's in focus, done

- focus peaking - manual focus via an adapter and make sure what you want is in focus

Besides, the design considerations done for video can't hinder a camera.  Think thermal management and readout on the chip - things that video pushes a lot.

If you want a stills camera, might I suggest the 645D from Pentax.  It's 40MP, lots of legacy glass options, and doesn't have a lick of video ability.

Canon General / Re: Lost half of my Canon DSLR
« on: February 18, 2015, 12:33:45 AM »
Karma is a B!tch, may they get repaid 10x over...

Serial numbers please, they aren't going to keep camera gear - chances are they're green square shooters...

Business of Photography/Videography / Re: Insurance for big whites? (USA)
« on: February 12, 2015, 12:46:44 PM »

Also check out

Keep in mind that big whites generally mean you're making money somehow - or at least that's what insurance companies will say.  Generally speaking, home insurance won't cover business gear - and you won't know until you make a claim.  Get a separate policy that specifically covers the gear listed, at full replacement value.  You can also cover rented gear and list the place you normally rent from as a covered entity - and most places will adjust their hold or deposit requirement.

EOS Bodies - For Video / Re: Help with an unusual macro setup
« on: February 11, 2015, 04:01:37 PM »
Are you looking for still images or video you can grab frames from?  I understand the workstation is doing Live View, but what is the end result?

Industrial inspection rigs are tuned to work for days on end, and most digital cameras can't handle hours upon hours of live view - the sensor will heat up too much and you get burnt pixels.  How much use will this camera actually get?  You may be better looking at a video camera than a dslr.

Glad it worked for you.  Next time you're out and see a neon sign, shoot it at a couple different shutter speeds - in large signs you'll see a variance in intensity until you hit 1/60th or so.  Yea, it pissed me off until I realized why.


Should fix it right up.  Yes, the lighting is flickering, almost as bad as neon :)

EOS Bodies / Re: Canon EOS 5Ds & EOS 5Ds R Image & Video Samples
« on: February 07, 2015, 07:51:29 PM »
Anyone shooting 50mp with poor technique will hate the image results.  My concern is that given the same performance as the existing 5d3 sensor, the reasons to go for the 645Z will still be valid.  I've shot stuff at iso 6400 and higher, and can pull exposure +4.

Here's an ISO test batch if someone wants to dig in further:

It's with the Z, mirror locked up, with the 400/5.6 (a legacy lens) at f/8 going from ISO100 to ISO 204k shooting part of the Space Needle here in Seattle at night.  I got a little out of order with the shots, but all the metadata is there.

Lighting / Re: Off camera cord- how to connect it to cold shoes?
« on: February 04, 2015, 01:01:09 PM »
Or grab a different ocf cord - maybe a longer one?

Third Party Manufacturers / Re: Pentax 645Z: Why no DXO test yet?
« on: February 03, 2015, 05:03:21 PM »
Just buy the Z - there is no comparison.  Hop over to LuLa and see some of the reviews.

I have a Hass and love it, but the Pentax does something different.  Weather seals, high iso, cheap used lenses, focus peaking, live view - it's all there.

I'm interested to see if the R does compared to the rumors, but still, the 810 doesn't appeal, even at the discount.

I didn't see any, but I sure saw a lot of photographers using the 200-400!!

AKA sports shooter crack...

Wide angle upside down most likely was shooting left handed with another camera in their right hand.

The surprise was no Hass/Phase/Pentax for the trophy bits.

Anyone see a camera covered in gaff?  Aka the 50mp beta body?

EOS Bodies / Re: POLL: Price of 5Ds
« on: February 01, 2015, 04:55:54 PM »
The only camera anywhere close to MP & price will be the 645Z - and that body is $8,500.  No reason to expect the 5Ds to be less than the 1Dx.  Should be between the two.

Why? Because they can, and there isn't a reason to not.  I am willing to bet that Nikon wishes they'd kept the D800 price a bit higher so they could discount it as needed to maintain sales numbers.

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