Beattie needed ?

Steev Dinkins · February 23rd, 2005, 03:34 AM

Ah. I can't imagine how you'd spin a Beattie screen. Maybe if it was one of the really big ones, however you are the one who made that wildly cool looking thing. :) The large format Beattie screens are freakin expensive. One goof and another $300 down the drain.

Funny, I got this image in my head of your friend who likes to rotate things.

http://www.holyzoo.com/media/galleri...honeplate.jpeg

:D

Daves Spi · February 23rd, 2005, 03:42 AM

<<<-- Originally posted by Steev Dinkins : Ah. I can't imagine how you'd spin a Beattie screen. Maybe if it was one of the really big ones, however you are the one who made that wildly cool looking thing. :) The large format Beattie screens are freakin expensive. One goof and another $300 down the drain.

Funny, I got this image in my head of your friend who likes to rotate things.

http://www.holyzoo.com/media/galleri...honeplate.jpeg

:D -->>>

Problem with beattie is, that you can rotate it just by center, or vibrate with it. I though the idea of my friend was to buy just fresnel lens and put it close to rotating ground glass... Yeah, the photo you post is appositing...

Brett Erskine · February 23rd, 2005, 12:29 PM

Dave-
You can oscillate a Beattie (or any other fresnel/GG combo)focusing screen BUT you need to keep the oscillations very very tight. 1 or 2 mm at most. Have you look into the Maxwell Precision Optics focusing screens? They can be order to custom sizes and focal lengths and are reguarded by many pro still photographers to be the brighter and sharper than the Beattie (not that Beattie screens are bad- they are GREAT). I worked with the owner to come up with a custom screen and I couldnt be happier with it. Its going into my medium format/35mm oscillating adapter. FYI they dont have a website but doing a google search should turn up contact info. Fair warning - Bill, the owner, likes to TALK....A LOT. Have a clear idea what all your measurement should be and with his incredible optical knowlege he should be able to help you.

Daves Spi · February 24th, 2005, 02:23 AM

<<<-- Originally posted by Brett Erskine : Dave-
You can oscillate a Beattie (or any other fresnel/GG combo)focusing screen BUT you need to keep the oscillations very very tight. 1 or 2 mm at most. Have you look into the Maxwell Precision Optics focusing screens? They can be order to custom sizes and focal lengths and are reguarded by many pro still photographers to be the brighter and sharper than the Beattie (not that Beattie screens are bad- they are GREAT). I worked with the owner to come up with a custom screen and I couldnt be happier with it. Its going into my medium format/35mm oscillating adapter. FYI they dont have a website but doing a google search should turn up contact info. Fair warning - Bill, the owner, likes to TALK....A LOT. Have a clear idea what all your measurement should be and with his incredible optical knowlege he should be able to help you. -->>>

I was looking for the contact before, I found telephone even address... But... I'm not from America, I'm from Europe, and its quiet difficult to reach something over sea :/

Daves Spi · February 25th, 2005, 03:32 AM

On these pictures you can see, how fresnel lens from focusing screen makes brighter images and distribute light into corners...

http://web.datriware.com/gfx_photos/articles/p850.jpg
http://web.datriware.com/gfx_photos/articles/p849.jpg

Here how we works :)))

http://web.datriware.com/gfx_photos/articles/p851.jpg

Next week I will take photo from NIKONs focusing screen and then Beattie...

Leo Mandy · February 25th, 2005, 07:31 AM

Where did you place the fresnel lens in the mix of the camera rig?

Mark Easton · March 20th, 2005, 06:49 PM

I have the opportunity to buy a top condition second hand Beattie Intenscreen for approx $30 US. Is this a good deal?

Also it is for a Nikon F5 and has no grid lines (model 82180) Will this be suitable for a static adaptor? Approximately what size is the intenscreen?

Thanks
Mark

Dan Diaconu · March 20th, 2005, 10:11 PM

brand new is about $90 US, 25/37mm, works for me.

Les Dit · March 21st, 2005, 04:27 AM

Brett,
optically speaking, if you oscillate one exactly 1 mm, how much do you think the image will be blurred due to that lateral lens movement?
some background: moving any image carrying optical element perpendicular to the optical axis moves the formed image,as far as I can tell.

I think I'll order a Maxwell screen tomorrow.
-Les

<<<-- Originally posted by Brett Erskine : Dave-
You can oscillate a Beattie (or any other fresnel/GG combo)focusing screen BUT you need to keep the oscillations very very tight. 1 or 2 mm at most. Have you look into the Maxwell Precision Optics focusing screens? They can be order to custom sizes and focal lengths and are reguarded by many pro still photographers to be the brighter and sharper than the Beattie (not that Beattie screens are bad- they are GREAT). I worked with the owner to come up with a custom screen and I couldnt be happier with it. Its going into my medium format/35mm oscillating adapter. FYI they dont have a website but doing a google search should turn up contact info. Fair warning - Bill, the owner, likes to TALK....A LOT. Have a clear idea what all your measurement should be and with his incredible optical knowlege he should be able to help you. -->>>

Daves Spi · March 29th, 2005, 03:23 AM

Test screens with Maxwell optics GG...

http://web.datriware.com/gfx_photos/articles/p945.jpg

Brett Erskine · March 29th, 2005, 09:13 PM

Dave-
We are using the same screen but your results appear to have far less clarity. Are you moving the GG or is it static in that picture? Is that a copy of a resolution chart or a original?

Les Dit · March 30th, 2005, 03:24 AM

I now have a Maxwell screen too, tests will follow shortly. By the way, Bill indicated to me that a regular ground glass can be used with no hotspot as well, if the optics are chosen well!

-Les

Daves Spi · March 30th, 2005, 05:06 AM

<<<-- Originally posted by Brett Erskine : Dave-
We are using the same screen but your results appear to have far less clarity. Are you moving the GG or is it static in that picture? Is that a copy of a resolution chart or a original? -->>>

Its original I printed on laser printer. GG is static.

Brett Erskine · March 30th, 2005, 09:32 PM

"By the way, Bill indicated to me that a regular ground glass can be used with no hotspot as well, if the optics are chosen well"

Yes. A fresnel is at type of lens so yes a regular lens will do the same thing but notice his choice words, "chosen well" - Finding the perfect lens has been proven difficult. From someone that has been there - save yourself a lot of time and just get a real focusing screen.

Les Dit · March 30th, 2005, 11:46 PM

For a $500 adapter, the $130 focusing screen is a lot of dough. Maybe $35 of glass will help keep costs low. I don't know yet. How much did he sell you the screen for ?

-Les

February 23rd, 2005, 03:42 AM	#17
Daves Spi Regular Crew Join Date: Feb 2005 Location: Czech republic, Prague Posts: 159	<<<-- Originally posted by Steev Dinkins : Ah. I can't imagine how you'd spin a Beattie screen. Maybe if it was one of the really big ones, however you are the one who made that wildly cool looking thing. :) The large format Beattie screens are freakin expensive. One goof and another $300 down the drain. Funny, I got this image in my head of your friend who likes to rotate things. http://www.holyzoo.com/media/galleri...honeplate.jpeg :D -->>> Problem with beattie is, that you can rotate it just by center, or vibrate with it. I though the idea of my friend was to buy just fresnel lens and put it close to rotating ground glass... Yeah, the photo you post is appositing... __________________ Daves At the beginning there was an idea, then the ambition came and the idea became to be a dream... The Satisfied Dream => http://film.datriware.com

February 24th, 2005, 02:23 AM	#19
Daves Spi Regular Crew Join Date: Feb 2005 Location: Czech republic, Prague Posts: 159	<<<-- Originally posted by Brett Erskine : Dave- You can oscillate a Beattie (or any other fresnel/GG combo)focusing screen BUT you need to keep the oscillations very very tight. 1 or 2 mm at most. Have you look into the Maxwell Precision Optics focusing screens? They can be order to custom sizes and focal lengths and are reguarded by many pro still photographers to be the brighter and sharper than the Beattie (not that Beattie screens are bad- they are GREAT). I worked with the owner to come up with a custom screen and I couldnt be happier with it. Its going into my medium format/35mm oscillating adapter. FYI they dont have a website but doing a google search should turn up contact info. Fair warning - Bill, the owner, likes to TALK....A LOT. Have a clear idea what all your measurement should be and with his incredible optical knowlege he should be able to help you. -->>> I was looking for the contact before, I found telephone even address... But... I'm not from America, I'm from Europe, and its quiet difficult to reach something over sea :/ __________________ Daves At the beginning there was an idea, then the ambition came and the idea became to be a dream... The Satisfied Dream => http://film.datriware.com

February 25th, 2005, 03:32 AM	#20
Daves Spi Regular Crew Join Date: Feb 2005 Location: Czech republic, Prague Posts: 159	On these pictures you can see, how fresnel lens from focusing screen makes brighter images and distribute light into corners... http://web.datriware.com/gfx_photos/articles/p850.jpg http://web.datriware.com/gfx_photos/articles/p849.jpg Here how we works :))) http://web.datriware.com/gfx_photos/articles/p851.jpg Next week I will take photo from NIKONs focusing screen and then Beattie... __________________ Daves At the beginning there was an idea, then the ambition came and the idea became to be a dream... The Satisfied Dream => http://film.datriware.com

March 29th, 2005, 03:23 AM	#25
Daves Spi Regular Crew Join Date: Feb 2005 Location: Czech republic, Prague Posts: 159	Test screens with Maxwell optics GG... http://web.datriware.com/gfx_photos/articles/p945.jpg __________________ Daves At the beginning there was an idea, then the ambition came and the idea became to be a dream... The Satisfied Dream => http://film.datriware.com

March 30th, 2005, 05:06 AM	#28
Daves Spi Regular Crew Join Date: Feb 2005 Location: Czech republic, Prague Posts: 159	<<<-- Originally posted by Brett Erskine : Dave- We are using the same screen but your results appear to have far less clarity. Are you moving the GG or is it static in that picture? Is that a copy of a resolution chart or a original? -->>> Its original I printed on laser printer. GG is static. __________________ Daves At the beginning there was an idea, then the ambition came and the idea became to be a dream... The Satisfied Dream => http://film.datriware.com

February 23rd, 2005, 03:34 AM	#16
Steev Dinkins Major Player Join Date: Nov 2004 Location: San Francisco, CA Posts: 613	Ah. I can't imagine how you'd spin a Beattie screen. Maybe if it was one of the really big ones, however you are the one who made that wildly cool looking thing. :) The large format Beattie screens are freakin expensive. One goof and another $300 down the drain. Funny, I got this image in my head of your friend who likes to rotate things. http://www.holyzoo.com/media/galleri...honeplate.jpeg :D

February 23rd, 2005, 12:29 PM	#18
Brett Erskine Major Player Join Date: Dec 2003 Location: Anaheim, CA Posts: 445	Dave- You can oscillate a Beattie (or any other fresnel/GG combo)focusing screen BUT you need to keep the oscillations very very tight. 1 or 2 mm at most. Have you look into the Maxwell Precision Optics focusing screens? They can be order to custom sizes and focal lengths and are reguarded by many pro still photographers to be the brighter and sharper than the Beattie (not that Beattie screens are bad- they are GREAT). I worked with the owner to come up with a custom screen and I couldnt be happier with it. Its going into my medium format/35mm oscillating adapter. FYI they dont have a website but doing a google search should turn up contact info. Fair warning - Bill, the owner, likes to TALK....A LOT. Have a clear idea what all your measurement should be and with his incredible optical knowlege he should be able to help you.

February 25th, 2005, 07:31 AM	#21
Leo Mandy Major Player Join Date: Dec 2004 Posts: 749	Where did you place the fresnel lens in the mix of the camera rig?

March 20th, 2005, 06:49 PM	#22
Mark Easton New Boot Join Date: Jan 2005 Location: Palmerston North, New Zealand Posts: 22	I have the opportunity to buy a top condition second hand Beattie Intenscreen for approx $30 US. Is this a good deal? Also it is for a Nikon F5 and has no grid lines (model 82180) Will this be suitable for a static adaptor? Approximately what size is the intenscreen? Thanks Mark

March 20th, 2005, 10:11 PM	#23
Dan Diaconu Major Player Join Date: Dec 2004 Location: Vancouver, Canada Posts: 804	brand new is about $90 US, 25/37mm, works for me.

March 21st, 2005, 04:27 AM	#24
Les Dit Major Player Join Date: Oct 2003 Location: Southern Cal-ee-for-Ni-ya Posts: 608	Brett, optically speaking, if you oscillate one exactly 1 mm, how much do you think the image will be blurred due to that lateral lens movement? some background: moving any image carrying optical element perpendicular to the optical axis moves the formed image,as far as I can tell. I think I'll order a Maxwell screen tomorrow. -Les <<<-- Originally posted by Brett Erskine : Dave- You can oscillate a Beattie (or any other fresnel/GG combo)focusing screen BUT you need to keep the oscillations very very tight. 1 or 2 mm at most. Have you look into the Maxwell Precision Optics focusing screens? They can be order to custom sizes and focal lengths and are reguarded by many pro still photographers to be the brighter and sharper than the Beattie (not that Beattie screens are bad- they are GREAT). I worked with the owner to come up with a custom screen and I couldnt be happier with it. Its going into my medium format/35mm oscillating adapter. FYI they dont have a website but doing a google search should turn up contact info. Fair warning - Bill, the owner, likes to TALK....A LOT. Have a clear idea what all your measurement should be and with his incredible optical knowlege he should be able to help you. -->>>

March 29th, 2005, 09:13 PM	#26
Brett Erskine Major Player Join Date: Dec 2003 Location: Anaheim, CA Posts: 445	Dave- We are using the same screen but your results appear to have far less clarity. Are you moving the GG or is it static in that picture? Is that a copy of a resolution chart or a original?

March 30th, 2005, 03:24 AM	#27
Les Dit Major Player Join Date: Oct 2003 Location: Southern Cal-ee-for-Ni-ya Posts: 608	I now have a Maxwell screen too, tests will follow shortly. By the way, Bill indicated to me that a regular ground glass can be used with no hotspot as well, if the optics are chosen well! -Les

March 30th, 2005, 09:32 PM	#29
Brett Erskine Major Player Join Date: Dec 2003 Location: Anaheim, CA Posts: 445	"By the way, Bill indicated to me that a regular ground glass can be used with no hotspot as well, if the optics are chosen well" Yes. A fresnel is at type of lens so yes a regular lens will do the same thing but notice his choice words, "chosen well" - Finding the perfect lens has been proven difficult. From someone that has been there - save yourself a lot of time and just get a real focusing screen.

March 30th, 2005, 11:46 PM	#30
Les Dit Major Player Join Date: Oct 2003 Location: Southern Cal-ee-for-Ni-ya Posts: 608	For a $500 adapter, the $130 focusing screen is a lot of dough. Maybe $35 of glass will help keep costs low. I don't know yet. How much did he sell you the screen for ? -Les