GH1 and T2i which is the one, no flame here

C

Cieloent

Well-known member
I currently own a Canon HDSLR and have no problems what so ever except file size and overheating.

With this New Firmware Hack does the Gh1 experience overheating issues or now file limits?

Also while I think the footage looks great technically I do not personally see that big of a difference. Other than MUD is there really a true difference now with the Hack? I worked with a GH1 before and thought it was an awesome camera I just bought a T2i though because it was less expensive.


Considering that I am in the market for a "B" cam and was thinking about buying another T2i or a GH1 since it seems like new life has been brought into this camera I am highly interested. So my real question is to users is this HACK really that good that anyone in the market for a DSLR should be looking into a GH1?

The only other thing I do not like though is the Gh1 crop ( x2) as I film more on the wide side ( 35mm or less ) so this could be a problem.


Thank You for any replies and apologies if this post was in the wrong location

Thank You
 
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I ran around with my GH1 in and out of my hot car, here in the sub-tropics, with the updated firmware, and shot all day long without a cloud in the sky and temps above 90 all day long without a single problem.

All the files brought back, and none of them have any issues at all. No hiccups, no freezes, just native 24P footage, and less noise, blocking, and banding all around.

Looking at the files close up, and messing around with them in Magic Bullet looks, I can tell you that there is definitely much more to the adjustments than just default image quality. How much you can stretch and modify these images are amazing, and they look great, much better image that holds together so much better with none of the quirks or issues I was seeing before.
 
No problems with overheating or file sizes, as long as you're using the AVCHD mode. If you're using the MJPG mode, there is a limited file size (2GB, so about half the recording time on the Canons). But the MJPG mode can be used to get 4:2:2 color also, so it's got benefits to go with the limited recording length.

Major reasons to consider a GH1 over a Canon would be if you need autofocus during video recording, or the live viewfinder, or the live histogram, or the articulating LCD, or you want to get rid of the purple/green moire that the Canons exhibit, or if you want to shoot 4:2:2 intraframe instead of only 4:2:0 long-GoP, or if you want clean/sharp 720/60p. Major benefits of the Canon over the GH1 would be HD live video output over HDMI (although only SD when recording, at least it *can* output video, where the GH1 only outputs SD while paused, and nothing while recording). Canon sensor is slightly larger; as compared to the Canon, the GH1 is a 1.18 crop factor. And the t2i is cheaper than the GH1.

Plus if you plan on getting an AF100 someday, the GH1 would probably be the more appropriate "B" camera to an AF100, since they can share the same lenses.
 
Barry_Green said:
And the t2i is cheaper than the GH1.

Plus if you plan on getting an AF100 someday, the GH1 would probably be the more appropriate "B" camera to an AF100, since they can share the same lenses.
Click to expand...

T2i body, is, in fact, more expensive.
All price difference appears from kit lens price.
Other part of equation is lenses prices.
As GH1 can mount Konica AR and Olympus OM old lenses.
Normally they go for fraction of Nikon or Pentax mount versions.
 
Right, but officially, in the USA, through authorized sales channels, you can't buy it body-only, unless there's been a new development I'm not aware of?

I've long thought the GH1 was a screaming deal at body-only, but the buyer would have to import it because it's not available as such in the USA... for those for whom the body-only deal is actually available, yes that pushes the equation back the other way and makes the GH1 the even more-affordable option.
 
i don't want to sound like negative nancy, but is the gh1 firmware hack sub forum just going to turn into another version of the Gh1 threads?
 
Car3o said:
i don't want to sound like negative nancy, but is the gh1 firmware hack sub forum just going to turn into another version of the Gh1 threads?
Click to expand...

We need something like this thread.
Otherwise we'll deal with constant new threads or flame in other threads.
 
Check out this one-to-one comparison of a hacked GH1 to 5DmkII. It re-enforces my long standing observation that it looks like the Canons doesn't render a true 1920x1080 'FullHD' video image from the sensor but rather a 960x540* image that's uprezzed in-camera and slightly blurred. The T2i/550D produces a even pixlier and softer looking image than 5DmkII. And despite all this softening Canons still manage to add false colour to the image (the green/purple crap) ...

http://www.dvxuser.com/V6/showpost.php?p=2015824&postcount=252


*That's not even SD PAL widescreen resolution (1024x576) btw.
 
Marti, thats very controversial?

Marti, thats very controversial?

Can you expand on how you think Canon start/get to such a low res and up it to 1080p. Lots of people had their suspicions it was less than full HD but not this low actual res below, before the upscale.?
 
Interesting.

Interesting.

They do a good job then with what they have, but its starting to look below par against the GH1?
 
I don't claim to have any knowledge on how the video image is actually processed in the Canons (or any other HDSLR for that matter) but my near 30 years of experience in film and video editing has told me from the-get-go there's something not quite up to snuff with the resolution in the Canons. Just look at the details in the GH1 vs 5DmkII post I linked to. And when I did a job which mixed footage from my GH1 and a Canon 7D this winter I had to soften up the GH1 quite a bit in order not to make it's sharpness 'pop' when cross-cutting between the two cameras. I am however not allowed to post anything in public from that particular gig but a user here called robocut posted a side-by-side of GH1 and T2i/550D and I've done a quick rehash on the process here in Photoshop:

On left is the original GH1 image, in middle T2i/550D and on right GH1 processed to match; I downscaled the GH1 image to 50% with the NEAREST neighbour algorithm (the worst), then upscaled it again using bilinear scaling and then applied a 0.3 pixel Gaussian blur. Look at individual hairs against the dark background, the T2i/550D is pixly there and the general feel is rather softish. The body of hair in the T2i/550D image also shows green/purple contamination and worse, that contamination is shimmering in movement.

Here's the original post where I found the test image: http://www.dvxuser.com/V6/showpost.php?p=1935555&postcount=91

So now with tester13's eminent patch (I hope my workload will drop soon so I get some time to take it for some spins myself) that fixes the occasional encoding break-ups there's no doubt in my mind that GH1 produces a better image from also a technical point-of-view, in my eyes it already produced a more pleasing natural looking image all around.
 

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It's long been known that none of the DSLRs produces an image that resolves anywhere near a true 1920x1080. They all produce an image that's somewhere around 720p worth of image detail, embedded in a 1080p signal, and liberally sprinkled with aliasing false detail all over.

The big difference between the GH1 and the 5D, now that the codec's been fixed, is going to come down to the FOV/DOF advantage of the Canon, vs. the chroma color contamination.
 
I would say the Canons - at least the 5D - also have a significant advantage in low light as well. Maybe I can do some side by side shots later when it gets dark here.
 
Oedipax said:
I would say the Canons - at least the 5D - also have a significant advantage in low light as well. Maybe I can do some side by side shots later when it gets dark here.
Click to expand...

have you seen the 5d/GH1 shootout over at EOSHD? pretty convincing that they are very similar..
 
Throw some post sharpening on the Canon’s and they look the same as the GH-1 (with the exception of that weird smoothing effect you sometimes get). As nice as the Gh-1’s image is I’ve always noticed an in-camera sharpening on the GH-1 that makes the image look artificially over-sharpened. Where it really stuck out for me was the first series in the Zacuto shootout…the GH-1 was sharper than them all….including the film.
 
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