Circle in the lens?


nivlac

New Member
Dec 9, 2004
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#1
Anyone knows wat is the tinted circle found in those old school lens? Like in movies where spies takes a photo...
 

Rashkae

Senior Member
Nov 28, 2005
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#2
Anyone knows wat is the tinted circle found in those old school lens? Like in movies where spies takes a photo...
Might just be lens coating. Post an image for us to know what "spy movies" you have been watching.

Or could be the film-style split focus screen
 

nivlac

New Member
Dec 9, 2004
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#3
Ahhhhhhh will try to find the image...

But it's usually either the BMW logo or half semicircle. Slightly translucent, think it helps in the focusing?
 

Rashkae

Senior Member
Nov 28, 2005
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#5
Ahhhhhhh will try to find the image...

But it's usually either the BMW logo or half semicircle. Slightly translucent, think it helps in the focusing?
Focusing screen. Common in film days, many higher-end dslr cameras will let you swap sreeens to that too.
 

catchlights

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Sep 27, 2004
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Punggol, Singapore
www.foto-u.com
#6
Anyone knows wat is the tinted circle found in those old school lens? Like in movies where spies takes a photo...
Ahhhhhhh will try to find the image...

But it's usually either the BMW logo or half semicircle. Slightly translucent, think it helps in the focusing?
You are referring to split image focusing screen?

what focusing screen has anything to with the spy? I have split image focusing in my Nikon DSLR and I'm not a spy.






 

daredevil123

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Staff member
Oct 25, 2005
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lil red dot
#7
The split circle is not in your lens. It is on the focusing screen in your camera (above the mirror in your DSLR). Most modern day cameras do not come with it because they usually comes with autofocus.
 

nivlac

New Member
Dec 9, 2004
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#9
icic... so its more for manual focus cameras?

just that i see in during spy movies when they whip out their dslr and snap photos of their target... it usually has that little circle in the middle.

thanks everyone :)
 

catchlights

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Sep 27, 2004
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#10
icic... so its more for manual focus cameras?

just that i see in during spy movies when they whip out their dslr and snap photos of their target... it usually has that little circle in the middle.

thanks everyone :)
Hello..... that is some sound effects and visual effects added during the post to make the scene more interesting.... and they have no money to upgrade the effects... nowadays where got dslr come with split image focusing screen and motordrive film winding? Don't you find is so fake meh.... so 80's.
 

Rashkae

Senior Member
Nov 28, 2005
19,105
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#11
icic... so its more for manual focus cameras?

just that i see in during spy movies when they whip out their dslr and snap photos of their target... it usually has that little circle in the middle.

thanks everyone :)
You believe everything you see in movies/on CSI?
 

kei1309

Senior Member
Apr 12, 2010
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#12
Hello..... that is some sound effects and visual effects added during the post to make the scene more interesting.... and they have no money to upgrade the effects... nowadays where got dslr come with split image focusing screen and motordrive film winding? Don't you find is so fake meh.... so 80's.
none of the current-day movies i watch come with this split-focusing screen.

i think TS is watching some old spy thriller
 

Octarine

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Staff member
Jan 3, 2008
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Pasir Ris
#18
Digital camera images are not even admissible in court, and on TV you see the folks in CSI carrying Nikon DSLRs...
In Singapore courts these images are admissible. But the presenting party has to show / confirm that the images were not altered. Most image manipulations can be detected with reasonable efforts.
 

Rashkae

Senior Member
Nov 28, 2005
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#19
Digital camera images are not even admissible in court, and on TV you see the folks in CSI carrying Nikon DSLRs...
Which court? In all that I know, they are admissable so long as it can be proven they were not altered
 

daredevil123

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Oct 25, 2005
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lil red dot
#20
In Singapore courts these images are admissible. But the presenting party has to show / confirm that the images were not altered. Most image manipulations can be detected with reasonable efforts.
Which court? In all that I know, they are admissable so long as it can be proven they were not altered
Not in the USA. CSI tv shows are based in several cities in USA. The forensic departments there still use film.
 

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