January 25, 2015, 09:28:42 AM

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Messages - preppyak

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Pricewatch Deals / Re: Price Drops on the Canon Cinema EOS C100
« on: January 22, 2015, 08:36:45 PM »
At this price, the old C100 will sit on shelves for a while. I could get a a7s + Shogun for $4500. 4K, FF, ProRes vs. HD, crop, AVCHD.
Yep, especially with the Speedboosters opening up the various BlackMagic cams, and Sony really pushing forward.

EOS Bodies / Re: Global Shutter Coming to Canon DSLRs? [CR1]
« on: January 22, 2015, 02:54:12 PM »
What's the point of having 30fps when you have video shot at 30fps?  Doesn't the 1DC cover this?  Or is this basically what the mirrorless cameras have, just faster? they have very fast frame bursts..  slightly confused?

The mirrorless cameras (like every other EOS with video) use a mechanical shutter for stills and an electronic shutter for video.

The problem with the electronic shutter is that is reads off line by line in a progressive wave accross the sensor.

Whilst it is easy to make the read of each individual read very fast (thereby equivalent to only being 'exposed' for 1/50th, 1/250th, 1/2000th of a second) the speed at which the scan passes over the entire chip is relatively slow.

This means that the moment of the last line being scanned is visibly behind the first and intermediate lines being scanned.

You may also have heard this being called 'jello shutter'. 

If you have a dslr with video mode, do a whip pan left or right.  Vertical lines become diagonal lines as the slow scan rate of the sensor is betrayed.

In a global shutter the entire frame is read in the one instant.  So these diagonal lines disappear.

Now the if it's doing that to diagonal lines, what else is it doing to other details in the image?

So why is it a problem?

Well, increasingly press photographers have to also provide video, and with the advent of 4K video decent frame grabs become viable.  You could fill a magazine cover with an 8MP frame grab from UHD footage.

But not if all the details are wavy and distorted.

So, there are two benefits...  it will make video a lot better, rapid camera movements are now possible  ...it will make video grabs a lot better too.  Something Canon must see a requirement for in certain user segments.

And I think they are right.

And implement Global Shutter on a camera that shoots 4k RAW video and suddenly you have a camera that can take 8-10mp stills, in RAW, at 24-30fps. Your limitation is no longer the shutter, its the buffer.

How this works within the confines of auto-focus is, I'm sure, it's own interest problem. Its a non-issue on most 4k production cams because you are pulling manual focus anyway. But if that comes with auto-focus, thatd be impressive as hell, even at 24fps

EOS Bodies / Re: Canon EOS Rebel 750D Spec List [CR1]
« on: January 21, 2015, 09:55:07 AM »
Splitting the Rebel line would be strange, then Canon would have six APS-C DSLRs for sale: the 1200D, 100D, 750D, 760D, 70D and 7DII. Rather a lot, I think.
Especially when the only difference between the 750D and 760D seems to be the rear dial (and creative modes that are not useful). That'd be mighty odd to open up a new camera line just to add a rear dial...I presume with the intention of making users love it and want a 70D/7D? Wouldnt they just buy a 70D since they'll be the same price (actually, 70D will be cheaper) upon release?

Third Party Manufacturers / Re: Sony closing down?
« on: January 18, 2015, 10:17:38 PM »
Sony won't close down though. Their sensors are in the vast majority of cameras people are using today, so they can spin that off as a profitable business on its own. Especially since their major competitors rely on them. I'd actually argue their failure to produce a consistent lens line is a function of them not trying to overextend their camera division. Instead they let 3rd parties handle that and focus on making cameras people want. And ones that adapt to legacy lenses that are used in the industry (PL, etc)

Third Party Manufacturers / Re: Sony closing down?
« on: January 18, 2015, 10:14:25 PM »
I still wonder if the "hack attack" was a publicity stunt to get more people to see the movie. It is a second rate movie with second rate actors and never had a chance to be well viewed.... after the hacking stunt, I am sure it was seen by ten times as many people as otherwise....
Absolutely not. You're forgetting how many people go see comedies nowadays just because of who is in them. Nate Silver ran a prediction (based on similar movies, including Pineapple Express with the same cast) and it would have made $100mil. Heck, even if it made half of that, last estimate I saw was that the Interview might gross about $40-50mil now. So, at best Sony broke even on expectations, probably lost money in reality, and crumbled their entire studio in the process. Sounds unlikely to be a publicity stunt...

The fallout might cripple Sony Studios, but, truth is running a studio might not be a profit-generator much into the future anyway

Third Party Manufacturers / Re: Rokinon 12mm F2.8 Fish-Eye
« on: January 18, 2015, 10:05:35 PM »
Have anyone shot astrophotography with this lens?  I am trying to decide between Samyang 14mm f/2.8 and this lens.  :)
compare the two at Lenstip: http://www.lenstip.com/porownaj.php?co=obiektyw&ile=2&add0=1225&add1=920

That said, the 14mm is one of the standard go-to's for astro work. From the comparison I see, I'd prefer the 14mm for having less coma and for not having the fisheye projection

Lenses / Re: New Rebel & EF 11-24 f/4L USM Coming Shortly
« on: January 15, 2015, 04:22:05 PM »
not to mention 11-24 can also serve nicely as a UWA on a cropped camera body as well.
What a waste that would be when there are already great 10-xx and 11-xx options for <$500 on crop.

EOS Bodies - For Video / Re: Canon EOS-1D C Coming Down in Price Again?
« on: January 14, 2015, 09:07:14 PM »
can anyone tell the reason to use this body for photography? I watched the victorias secret fashion show and saw a couple photographers using the 1Dc you can tell by the little red C on the body, kinda stands out with a black body. just wondering why pay the premium to use it for shooting?
Because its a one-size fits all solution for them. The 1D-C is the 1DX, but with video capabilities for 4k as well. So, if you're a fashion photog, odds are you pretty much have to be able to do both photo and video today. 1D-C is uniquely positioned to do both, and of course, have the ability to shoot high frame rates for other pro jobs.

Honestly, if the new price is true, the question is why anyone would purchase the 1DX. For $1000 more you get 4K video, etc.

with the 4k video you can probably use screengrabs from any video it outputs as photos
yeah, but they are jpeg compressed and prone to motion artifacts. Its the RAW cameras where 4k is really interesting

EOS Bodies / Re: Camera ownership on Flickr: 2013-2014
« on: January 13, 2015, 08:13:09 PM »
Will anybody be using flickr in 1 or 2 years from now? 
Yes, for the same reason Myspace still exists and old photo sites like Photobucket, etc exist. People have TB upon TB stored there, it will survive for that reason alone.

Lenses / Re: New EF-S 18-300 f/3.5-5.6 IS STM Around the Corner? [CR1]
« on: January 12, 2015, 10:37:19 PM »
I think that those of you who are poo-pooing this lens and lenses like this forget that a large percent of DSLR camera owners only have the kit lenses. 
Yep, even my friends that are into photography own lenses like the 18-200 currently, so, they no doubt have their market. In this forum, a lot might not buy it. But, in the real world, the most purchased lenses beyond the 18-55 kit are the 55-250 and the 18-XXX superzooms.

Otherwise every lens brand wouldnt have its own variation

EOS Bodies / Re: Patent: CN-E 35-260mm f/2.8 Soft Focus Lens
« on: January 12, 2015, 10:31:41 PM »
In summary, it seems the only benefit is the bokeh, yeah? Not to be overly critical, but does that limit this soft-focus lens to backlit situations under warm sunsets and perhaps some night-on-the-street scenes?

I'm really racking my brains to think of a recent movie with a soft-focus scene. The image that keeps showing up in my head is some old Whitney Houston music videos.
Well, we are relying on a google translation of the terms, its quite possible that the practical effect could be similar to what Sony does with their 135 lens, which is genuinely unique.

Truth is, in the cine world, even 4k is only relying on about 8mp of resolution. So, what shows up as "soft-focus" on a 20mp modern sensor could have a very different use within the video world.

35-260 is an interesting range for that application. Maybe they intend it for things like broadcast news? Or a similar event/talking style, where background separation is key and "sharpness" in the traditional sense is not as crucial

Lenses / Re: What the better value?
« on: January 12, 2015, 07:07:43 PM »
I've finally saved up some money for a new lens and I wanted to take a little poll.

Would you rather purchase the 70-200 f/2.8 L IS USM ii, or purchase both the 70-200 f/4 L IS USM and the 100mm f/2.8 L Macro?

The way I see it, with modern ISO performance on FF cameras, f/2.8 isn't as critical as it use to be, but I wanted to read some discussion.


If you shoot a lot of action, then get the f/2.8 version. It makes a big difference for shutter speed reasons and for auto-focus reasons (most of the dual-cross points are f/2.8 reliant). If you arent shooting fast action, then I gotta say, the f/4L IS was my favorite lens I owned. Sharp, great AF, great build. If I didnt need the f/2.8, I'd have owned it a very long time.

An alternative to your problem may be the get the 70-200 f/2.8 and then look into getting a legacy, manual focus macro lens. Pretty easy to get ones that go down to 1:2 for fairly cheap, and even some 1:1 lenses can be had cheap too.

EOS Bodies / Re: A New xxD DSLR Coming From Canon [CR1]
« on: January 12, 2015, 07:04:08 PM »
Looks a lot like the 60D body too. My bet is that its the 70D sensor and auto-focus, but without some of the more pro features (frame-rate, AFMA, buffer, etc), just like the 60D had a while ago.

Wouldnt surprise me if they renamed it, since they've essentially left the Ti/xxxD line. They updated that thing yearly, yet the 700D hasnt been updated in almost 2 years (with a new sensor that came out in the meantime)

Lenses / Re: Samyang 135mm f/2.0 Announced?
« on: January 12, 2015, 12:50:14 PM »
Hmm, that'll have to come down to more like $400 to succeed. The 135L is at a street price of $7-800 used, and the refurb is right around $800. Cant see many (non-video) people saving $2-300 and losing one of the best AF lenses Canon has.

Also means the cine version would be like $700ish on release. Which is pricy as well.

EOS Bodies / Re: NEW CAMERA - EOS 80D?
« on: January 11, 2015, 11:41:28 PM »
Funny you should mention that, I'm fairly certain the 80D will be full frame.
If its full-frame, it will take on a different name. 8D or so. Otherwise they'd have made the 6D have an xxD name.

The camera in question looks exactly like a 60D shell without the AF-on button. So it'd make sense if the T6i is getting upgraded with a nicer body, the 70D sensor, but somewhat crippled specs (maybe 19pt AF, but, only 4fps and no AFMA). And they are saving money by just reusing the 60D body for that.

Would leave the SL2 (or whatever) to be the smaller entry level camera

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