Sony 900 and P+S at DVinfo.net

Gary McClurg · January 27th, 2006, 09:11 PM

I did a search but nothing came up...

I was wondering if anyone has any information about using the P&S with the 900...

What I do know is that you have to adjust your back focus... now that's just to the adapter, right...

In other words you don't have to adjust your back focus each time you change lens...

Thanks in advance...

Gary

Jason Varner · January 27th, 2006, 10:23 PM

As far as I know you have to check the back focus every time you change a lens. Even if somewhere it said you don't have to I would. For searching you might look up pro 35 which is the 2/3 version of the mini 35. Good Luck, Jason.

Gary McClurg · January 27th, 2006, 10:32 PM

Thanks Jason...

Chris Hurd · January 27th, 2006, 11:12 PM

The 2/3rd-inch version is called the Pro 35.

Moved thread to P+S Technik forum.

Nick Hiltgen · January 31st, 2006, 10:45 AM

I'll never argue that checking backfocus for each lens is a bad idea, but in my experience with the pro35 with the 900 it wasn't really neccessary, as most of the time it holds pretty well. good rule of thumb is check it in the morning, after lunch and when there are major location moves (indoor to outdoors that sort of thing)

Charles Papert · January 31st, 2006, 10:58 AM

The backfocus adjustment is at the adaptor only so the only reason you would need to adjust it when changing lenses is if you were jamming the sucker in and out of the lens port...! The backfocus regulates the focus on the ground glass, which does effectively the focal plane of the system.

Nick Hiltgen · February 1st, 2006, 01:19 AM

Just reread my post, uh when I said wasn't really necessary I meant for every lens, just as charles said, if you're super rough with the lens change (what are you doing near the camera and) that would be the reason for adjusting backfocus every shot.

Gary McClurg · February 1st, 2006, 09:41 AM

Thanks guys... haven't shot with either so... I needed to know some things...

Anyone know who has the best rental price in town on a 900... I might go with a owner/operator down here in OC as my DIT... but always looking for a better deal...

Nick Hiltgen · February 3rd, 2006, 09:12 AM

Gary, I'd say that's equal parts risky and smart, most D.I.T.'s that I know don't own therr own camera, and most camera owners I know aren't really D.I.T.'s However if you can get a good deal then it may be worth it. The usual suspects in town will give you a pretty good price (plus 8, VER, etc) How long is your shoot? that will play pretty heavily into it as well. And out of professional curiosity who's the owner/operator D.I.T.?

I'm not positive but Clarimont is the only place I know of that has the pro 35 adapter for rent. Mike Condon (the head engineer over there) probably has a short list of D.I.T.'s (which I'm not on...) that he would suggest as well.

January 27th, 2006, 09:11 PM	#1
Gary McClurg Major Player Join Date: Jul 2004 Location: Springfield, MO, USA Posts: 389	Sony 900 and P+S I did a search but nothing came up... I was wondering if anyone has any information about using the P&S with the 900... What I do know is that you have to adjust your back focus... now that's just to the adapter, right... In other words you don't have to adjust your back focus each time you change lens... Thanks in advance... Gary

January 27th, 2006, 11:12 PM	#4
Chris Hurd Obstreperous Rex Join Date: Jan 2001 Location: San Marcos, TX Posts: 27,368 Images: 513	The 2/3rd-inch version is called the Pro 35. Moved thread to P+S Technik forum. __________________ CH Search DV Info Net \| 20 years of DVi \| ...Tuesday is Soylent Green Day!

January 31st, 2006, 10:45 AM	#5
Nick Hiltgen Trustee Join Date: May 2003 Location: Atlanta GA Posts: 1,427	I'll never argue that checking backfocus for each lens is a bad idea, but in my experience with the pro35 with the 900 it wasn't really neccessary, as most of the time it holds pretty well. good rule of thumb is check it in the morning, after lunch and when there are major location moves (indoor to outdoors that sort of thing) __________________ I have a dream that one day canon will release a 35mm ef to xl adapter and I'll have iris control and a 35mm dof of all my ef lenses, and it will be awesome...

January 31st, 2006, 10:58 AM	#6
Charles Papert Wrangler Join Date: Jan 2002 Location: Los Angeles, CA Posts: 6,810	The backfocus adjustment is at the adaptor only so the only reason you would need to adjust it when changing lenses is if you were jamming the sucker in and out of the lens port...! The backfocus regulates the focus on the ground glass, which does effectively the focal plane of the system. __________________ Charles Papert www.charlespapert.com

February 1st, 2006, 01:19 AM	#7
Nick Hiltgen Trustee Join Date: May 2003 Location: Atlanta GA Posts: 1,427	Just reread my post, uh when I said wasn't really necessary I meant for every lens, just as charles said, if you're super rough with the lens change (what are you doing near the camera and) that would be the reason for adjusting backfocus every shot. __________________ I have a dream that one day canon will release a 35mm ef to xl adapter and I'll have iris control and a 35mm dof of all my ef lenses, and it will be awesome...

January 27th, 2006, 10:23 PM	#2
Jason Varner Major Player Join Date: Aug 2005 Posts: 119	As far as I know you have to check the back focus every time you change a lens. Even if somewhere it said you don't have to I would. For searching you might look up pro 35 which is the 2/3 version of the mini 35. Good Luck, Jason.

January 27th, 2006, 10:32 PM	#3
Gary McClurg Major Player Join Date: Jul 2004 Location: Springfield, MO, USA Posts: 389	Thanks Jason...

February 1st, 2006, 09:41 AM	#8
Gary McClurg Major Player Join Date: Jul 2004 Location: Springfield, MO, USA Posts: 389	Thanks guys... haven't shot with either so... I needed to know some things... Anyone know who has the best rental price in town on a 900... I might go with a owner/operator down here in OC as my DIT... but always looking for a better deal...

February 3rd, 2006, 09:12 AM	#9
Nick Hiltgen Trustee Join Date: May 2003 Location: Atlanta GA Posts: 1,427	Gary, I'd say that's equal parts risky and smart, most D.I.T.'s that I know don't own therr own camera, and most camera owners I know aren't really D.I.T.'s However if you can get a good deal then it may be worth it. The usual suspects in town will give you a pretty good price (plus 8, VER, etc) How long is your shoot? that will play pretty heavily into it as well. And out of professional curiosity who's the owner/operator D.I.T.? I'm not positive but Clarimont is the only place I know of that has the pro 35 adapter for rent. Mike Condon (the head engineer over there) probably has a short list of D.I.T.'s (which I'm not on...) that he would suggest as well. __________________ I have a dream that one day canon will release a 35mm ef to xl adapter and I'll have iris control and a 35mm dof of all my ef lenses, and it will be awesome...