Flip vs non flip at DVinfo.net

Buba Kastorski · March 3rd, 2009, 09:47 AM

always wanted to get a cine dof and now decided to go brevis,
i'm thinking to get non flipped system and small hd monitor, cuz shooting up side down is a pain; please correct me if i am wrong, but i think that with the flip module i'll get more light loss as opposed to shooting straight from the GG,
many thanks.

Chris Leong · March 3rd, 2009, 10:43 AM

Hey Buba
While it's certainly true that the less glass you have between your ground glass and your taking lens the brighter the image, the modern prisms that most of the folks are using to unflip the images these days don't eat up much light at all. Letus claims 1/2 a stop through its entire system, for instance, whereas if you used the unflipped Letus you'd still lose, what, maybe 1/4 stop? So if 1/4 stop is worth the unflipping monitor, etc., then that's the way you should go. Or get a DOF adaptor that accepts its unflipping module as an attachment, and then unflip as required.

Buba Kastorski · March 11th, 2009, 08:28 AM

Thanks Chris,
totally agree, 1/4 of a stop, I probably won't even notice that,

Phil Bloom · March 11th, 2009, 06:19 PM

Get a flip...trust me, you won't regret it. Shooting flipless is a massive pain in backside.

March 3rd, 2009, 09:47 AM	#1
Buba Kastorski Trustee Join Date: Jun 2007 Location: Toronto Posts: 1,414	Flip vs non flip always wanted to get a cine dof and now decided to go brevis, i'm thinking to get non flipped system and small hd monitor, cuz shooting up side down is a pain; please correct me if i am wrong, but i think that with the flip module i'll get more light loss as opposed to shooting straight from the GG, many thanks. __________________ I love this place!

March 3rd, 2009, 10:43 AM	#2
Chris Leong Major Player Join Date: Mar 2005 Location: Los Angeles CA USA Posts: 507	Hey Buba While it's certainly true that the less glass you have between your ground glass and your taking lens the brighter the image, the modern prisms that most of the folks are using to unflip the images these days don't eat up much light at all. Letus claims 1/2 a stop through its entire system, for instance, whereas if you used the unflipped Letus you'd still lose, what, maybe 1/4 stop? So if 1/4 stop is worth the unflipping monitor, etc., then that's the way you should go. Or get a DOF adaptor that accepts its unflipping module as an attachment, and then unflip as required. __________________ "The content, not the container."

March 11th, 2009, 08:28 AM	#3
Buba Kastorski Trustee Join Date: Jun 2007 Location: Toronto Posts: 1,414	Thanks Chris, totally agree, 1/4 of a stop, I probably won't even notice that, __________________ I love this place!

March 11th, 2009, 06:19 PM	#4
Phil Bloom Trustee Join Date: Aug 2006 Location: London UK Posts: 1,939	Get a flip...trust me, you won't regret it. Shooting flipless is a massive pain in backside. __________________ Philip Bloom Cinematographer, Director, Filmmaker www.philipbloom.net