squig's MKII epic

I would think that manual focus lenses for manual cameras (I;m thinking Leica and Contax) would be at least ball-park accurate, ie you wouldn't measure distance with then. but you could set focus by measurement.
All the true manual lenses I have do stop hard at Infinity, but some modern ones do go beyond, this is to compensate for thermal effects. This is especially the case with lenses containing Fluorite elements, as that material has a significantly higher thermal expansion than glass.
Dave
 
daveswan said:
If the adapter is up to spec, then the flange distance will be accurate. Not much use if it isn't.
Back-Focus issues are a 3 chip ENG sort of thing. Stills cameras don't have them.
Dave
Click to expand...

Still cameras do have them, the same as the RED camera has back focus that needs to be adjusted correctly. The problems are just not as noticeable, because CMOS still chips run cooler than their video or RED counter parts, and on ENG and 2/3" videocameras most people use zooms, and the problems are more noticeable using zooms.

Especially going to Nikon or other lenses on a Canon body, even with the best made adapters, the focus markers may be off because the lenses aren't collimated to the most critical of standards that say your panavision lenses are - and even with those guys you have to ask the lens to be replaced or adjusted sometimes.
 
If the adapter is off, then it's not fit for purpose under our sale-of-goods act.
I would expect the Novoflex Leica R to EOS to be accurate, since they use genuine Leica mounts. The greater the difference between the flange distances of different makes, the easier it is to engineer the adapter. This is one reason why I'm going Leica R. The other is the shear quality of Leica lenses.
Dave
 
just got my LCD glasses http://www.vuzix.com/iwear/products_av310w.html they're just what I was looking for. They only have a composite input so the image quality is pretty crap but they do what I need them to do and that is allow me to frame and keep focus with the camera at any sort of crazy angle or while running down the street.

They have a switchable 4:3, 16:9, and stretched 4:3 options so you can choose 4:3 and see all the menu data you see on the MKII LCD or you can go the stretched full screen option with no menu data. The 16:9 option is perfect if you're shooting anamorphic. Man I wish these things had a HDMI input.

They are really narrow across your face and they tilt 15 degrees up and down so you can still see where you are going and look at the camera controls. I just shot a few minutes of the kids with the MKII at floor level and managed to control focus as well as I can with the LCD.

Like I said the picture quality is really bad but for certain shooting situations I think these things will be essential for me. For those who want to look cool I reckon you could pull them apart and just attach the LCD screens to the inside of some sunglasses. very stealthy. It's so easy to walk around with the camera at waist height and focus with these things. They're not very comfortable so I might mod them to fit into my spy clints.

It's such a shame the picture quality is so bad but if you really need to get the shot these are the business. I'm really hoping somebody makes something like this with HDMI out it would be so cool.

I just noticed that vuzix are one step ahead of me and are bringing out a sunglasses model http://www.vuzix.com/iwear/products_wrap920av.html They don't have HDMI in and aren't as coll as my spy clints though.
 
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Just got the new VGA 640x480 LCD glasses http://www.vuzix.com/iwear/products_vr920.html , they're a big improvement on the composite glasses. The MKII appears to put a cooler signal out of HDMI and composite outputs than what's displayed on the LCD so again these things are only good for focussing and framing but they are much sharper than the composite glasses and the image is bigger and I'm finding it easier to focus with them than with the LCD. Hopefully sometime in the near future they will put out glasses with HDMI in but for now these will do.

Oh if you're interested in the glasses you will need some adapters and cables, I'll post links shortly.

EDIT: it's the glasses not the HDMI out with a color temp issue. I just hooked them up to my mac and the DVX web page is blue. Unfortunately there's no way to change the color temp unless you have the glasses hooked up to a pc and even then I don't know if the glasses retain the settings if you disconnect them. maybe someone running windows can test this.
 
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Poppa's got a new look.......


Laddies, gentlemen and all the infantile ( me included) ; I introduce to you the new and totally improved SQUIG............


burton1a.jpg



Just off the press from down under... A crowd of people over heard.

" Hey is that Jordy from StarTrek.."

" Oh no, that's a local we call SQUIG. He's got some new hot LCD shades...He's f-ing to cool.."

" Oh.... So LA!"



.Michael Pappas
http://www.pbase.com/Arrfilms

Anamorphic DSLR Lens Test Images... links:
http://www.dvxuser.com/V6/showpost.php?p=1638289&postcount=97
http://www.dvxuser.com/V6/showpost.php?p=1637705&postcount=84
Facebook & Myspace:
http://www.facebook.com/people/Michael-Pappas/573417404
http://www.Myspace.com/PappasArts
Arrfilms@hotmail.com
http://www.PappasArts.com
 
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lol Jordy is cool....he makes shi* work

I'm actually a Vulcan here to observe and I find your use of inferior digital technology fascinating
 
If you want to try the VR920 glasses Vuzix has a 30 day money back guarantee if you buy direct. The only problem with that is the street price is much lower.

Here's the rest of the bits you will need to use them with the MKII (thanks to ydgmdlu for compiling it)-

To get the best image signal, buy the HDFury to help you convert DVI to VGA: http://www.monoprice.com/products/p...=10114&cs_id=1011402&p_id=4559&seq=1&format=2

You'll need the following to connect the camera and VR920 to the HDFury...
3 ft mini-HDMI to HDMI cable: http://www.monoprice.com/products/p...=10242&cs_id=1024201&p_id=3644&seq=1&format=2
HDMI to DVI adapter: http://www.monoprice.com/products/p...=10419&cs_id=1041902&p_id=2029&seq=1&format=2
VGA gender changer:http://www.monoprice.com/products/p...=10416&cs_id=1041602&p_id=1191&seq=1&format=2

You end up with a really cumbersome wad of adapters but I couldn't find a more compact alternative and you can either strap it to a stabilizer or put it in a pocket.

You will also need a battery pack with a USB port. I bought the macally (link in above post) having some technical difficulties with it at the moment. There's some 4AA battery packs with 5V USB ports on ebay like this one- http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&ssPageName=STRK:MEWAX:IT&item=300262614354 that should be OK. I'm going to get one as a backup (it might even work)

You can also buy a rubber lightshield for the VR920 http://vr920.com/iwear/products_accessories.html I go without them if I'm moving so I can still see around me but they are good if you're stationary and want to block out any light.

Keep in mind I'm recommending these primarily for stabilizer work. If you're shoulder mounting them something like the Zacuto or hoodloupe or that new one in another thread is probably a better option because the glasses don't give an accurate representation of chroma/luma

it's always fun being on the bleeding edge :badputer:
 
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squig said:
If you want to try the VR920 glasses Vuzix has a 30 day money back guarantee if you buy direct. The only problem with that is the street price is much lower.

Here's the rest of the bits you will need to use them with the MKII (thanks to ydgmdlu for compiling it)-

To get the best image signal, buy the HDFury to help you convert DVI to VGA: http://www.monoprice.com/products/pr...seq=1&format=2

You'll need the following to connect the camera and VR920 to the HDFury...
3 ft mini-HDMI to HDMI cable: http://www.monoprice.com/products/pr...seq=1&format=2
HDMI to DVI adapter: http://www.monoprice.com/products/pr...seq=1&format=2
VGA gender changer: http://www.monoprice.com/products/pr...seq=1&format=2
Click to expand...
Interesting information, links do not work though.
 
I've managed to figure out how to set brightness, contrast and backlighting but unfortunately there isn't any saturation or color temp control.
 
I emailed Vuzix about the USB power issue, the news is not good-

"Thank you for submitting your inquiry on our website! The VR920 requires enumeration with the host it is connected to before it will activate. The device that you are using may supply power to the iWear, but if it is not signaling it then the VR920 will not activate.

I am not currently aware of any firmware updates that will add adjustments for saturation or color balance, but you may be able to find other software that will allow you to adjust these settings.

We are aware of the demand for an HMD product that supports HDMI connections, hopefully someday soon you will see us release a product that supports them. Please feel free to contact me again if you have any further questions."

anybody got any ideas?
 
The 5D has a USB port. What if you tried connecting to that? It might not work, but just a thought...

I'm very interested to know if you get the whole set-up working. I'm having troubles getting the VGA signal to work on my 8" LCD monitor.
 
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