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  • Hey all, just changed over the backend after 15 years I figured time to give it a bit of an update, its probably gonna be a bit weird for most of you and i am sure there is a few bugs to work out but it should kinda work the same as before... hopefully :)

EPIC and RPZs (zooms)...

Lee Saxon said:
For Canon you mention fastest shutter speed w/ flash sync (overall fastest is 1/8000th on pro DSLRs, 1/4000th cheaper DSLrs)

Phase One you mention overall fastest shutter speed (flash sync speed depends on what camera it's attached to but absolute best case scenario is 1/1600th, usually more like 1/125th).

So I'm not sure which we're talking about.

Either way, I've never gotten even close to needing 1/4000th, even shooting NFL, so if that was where Epic ended up being limited I'd be fine with it. Plus, Jim said they were still working on it. So I don't know why we're worried about this.
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from phase one

645df


Shutter
1/4000s to 60 minutes
Up to 120 frames per minute

Flash
Focal plane shutter: Up to 1/125s
Leaf shutter lenses: Up to 1/1600s*
1st and 2nd curtain flash synchronization
X sync terminal and support for TTL flash

youre right about the canons

being corrected when i make a dumb statement has always been my way of learning :)
 
chrislancaster said:
there is no way you are use to 1/10000 from a stills ... canons best is 1/250th

a $30000 phase one can get you 1/8000 but i dont know of anything that has the shutter speed of 1/10000 not even the red one
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Not quite sure what you're referring to here Chris? Both Canon and Nikon pro bodies have 1/8000th shutters.....1/250th is the max flash x-sync shutter speed.

Typically MF cameras had much slower shutters, although Phase One and Leica now have 1/4000th (Focal Plane Shutter) ....their built-in flash sync speeds were usually slower too, at around 1/125th, although by using their optional Central (leaf) Shutters higher flash sync speeds up to 1/500th are possible (Phase now claims 1/1600th iirc).

With extra kit higher flash sync speeds are possible, using TTL-HSS.

Back on topic....good news about the RPZ's.
 
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GLap said:
Not quite sure what you're referring to here Chris? Both Canon and Nikon pro bodies have 1/8000th shutters.....1/250th is the max flash x-sync shutter speed.

Typically MF cameras had much slower shutters, although Phase One and Leica now have 1/4000th (Focal Plane Shutter) ....their built-in flash sync speeds were usually slower too, at around 1/125th, although by using their optional Central (leaf) Shutters higher flash sync speeds up to 1/500th are possible (Phase now claims 1/1600th iirc).

With extra kit higher flash sync speeds are possible, using TTL-HSS.

Back on topic....good news about the RPZ's.
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if you notice i corrected myself
 
Mitch Martinez said:
how about with the with the old RPZ 18-50mm? will that cover the Epic sensor pretty much the same as the 17-50mm?
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The 18-50 is not a RPZ, it is a RZ ;-)

It would be nice however, for those that have one, to know how it will fare on an Epic...

Cheers,
Damien
 
Damien Molineaux said:
The 18-50 is not a RPZ, it is a RZ ;-)

It would be nice however, for those that have one, to know how it will fare on an Epic...

Cheers,
Damien
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very correct. my bad. I'll remove the "P" from my post. still would love to know. my gut tells me that we should be okay with the RZ 18-50mm but I love official confirmations.
 
The 18-50mm RED zoom does not have quite the coverage as the RPZ 17-50mm.

Jim
 
Jannard said:
The 18-50mm RED zoom does not have quite the coverage as the RPZ 17-50mm.

Jim
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fair enough. does it cover 5K starting at a certain focal length? (Like the 5K FF Slight vignetting with 17-50mm = Solution is to begin at 19mm.) Or does it vignette all the way through the 18-50?
 
Jannard said:
The 18-50mm RED zoom does not have quite the coverage as the RPZ 17-50mm.

Jim
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Thank You ever so much for this info. 17-50mm it is...

Any idea whether the 17-50 could be used (on Epic of course) with the smaller ET S3D rigs, like the one Jarred posted pictures of?

Thanks

Peter
 
Mitch Martinez said:
fair enough. does it cover 5K starting at a certain focal length? (Like the 5K FF Slight vignetting with 17-50mm = Solution is to begin at 19mm.) Or does it vignette all the way through the 18-50?
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I'd like this info, too - I'm sure a lot of us would. I'm keeping my MX'ed RED ONE and will still plan to make good use of this lens for years to come...just would like to know how versatile it will be in terms of EPIC...or whether it would make sense to get in the 17-50mm line.
 
Matthew Rogers said:
What about the RPP's? I believe they have a wider image circle than the zooms, but just wanted to check...

Also, how is the FOV being figured now considering 16:9 is less than 5k and you have new modes like 2.4:1. It's kinda hard to figure out in your head when you are a visual person.

Matthew
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Jim?
 
Jeremy Forni said:
Same question Jim

The 18-50mm RED cover 5K starting at a certain focal length? Or does it vignette all the way through the 18-50?
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5K coverage starts roughly at 22mm.

Jim
 
Jannard said:
5K coverage starts roughly at 22mm.

Jim
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yahtzee! thanks Jim. I can definitely live with a 22mm starting focal length for my 18-50mm. cheers!
 
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Jannard said:
I think I have some pretty good news. I've put both the RPZ 17-50 and RPZ 18-85 on my EPIC Tattoo and here are the results:

5K 2.4:1
No vignetting issues with either lens

5K 2:1
No issues with 17-50mm.
Very slight vignetting with 18-85mm at 18mm. Zoom to about 19mm and no issues.

5K FF
Slight vignetting with 17-50mm. Solution is to begin at 19mm.
Issue with 18-85mm at 18mm. Solution is to begin at about 22mm.

Important reminder... this is 5K and the sensor is larger so focal lengths act wider than on a RED ONE. This is good news because you still get the coverage you want even when you shoot 22mm (since that acts like about 18mm). And there are no issues whatsoever above the starting focal lengths.

Jim
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So what does 5K FF mean? Full sensor including look around=30mmx15mm?
What is the difference between 5K 2:1 and 5K FF?

I really hope that your choice of a 2:1 sensor will permeate through to screen manufacturers, but I doubt it, at least for the coming few years.
16:9 is , in my opinion, an uninspirering bastard format, that is all most impossible to get a decent framing from. Its just all ways in between. I much prefer 4:3 or 2:1 and above.
There is a reason that the ASCs recommandation for HDTV back in the day was 2:1, but at this date it is not an accepted format, not by a long shot;-)
On my last two features(shot on RED), I was denied the option of 2:1 because of distributors unwillingness and the cinemas not having hardmattes for their projectors.
 
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