Coronation - antireflective coatings?

[J. P. Gilliver]

Nobody seems to have thought to apply antireflective coatings to the
glass in the various coaches, so we could see the occupants rather than
a shaky reflection of the outside. OK, it hadn't occurred to me either
until it did, but I'd have thought the problem would have showed up in
assorted rehearsals.

[John Williamson]

Post by J. P. Gilliver
Nobody seems to have thought to apply antireflective coatings to the
glass in the various coaches, so we could see the occupants rather than
a shaky reflection of the outside. OK, it hadn't occurred to me either
until it did, but I'd have thought the problem would have showed up in
assorted rehearsals.

A polarising filter on the camera can be quite effective. I use one as a
matter of routine and adjust it as required when any reflective surface
(Water, glass, or metal) is in the picture. It also helps get a blue sky
with bright white cloud contrasting the blue on sunny days.

The only downsides are when you have an old style zone toughened
windscreen in scene or when you really, really need that last stop of
sensitivity.

[J. P. Gilliver]

Post by John Williamson

Post by J. P. Gilliver
Nobody seems to have thought to apply antireflective coatings to the
glass in the various coaches, so we could see the occupants rather than
a shaky reflection of the outside. OK, it hadn't occurred to me either
until it did, but I'd have thought the problem would have showed up in
assorted rehearsals.

A polarising filter on the camera can be quite effective. I use one as
a matter of routine and adjust it as required when any reflective
surface (Water, glass, or metal) is in the picture. It also helps get a
blue sky with bright white cloud contrasting the blue on sunny days.
The only downsides are when you have an old style zone toughened
windscreen in scene or when you really, really need that last stop of
sensitivity.

(Would it work with more-or-less vertical flat sheets as in the carriage
windows?) Well, nobody seems to have thought of doing that either - or
if they did, it didn't work very well.

[John Williamson]

Post by J. P. Gilliver
(Would it work with more-or-less vertical flat sheets as in the carriage
windows?) Well, nobody seems to have thought of doing that either - or
if they did, it didn't work very well.

Yes, I alter the angle to control how much can be seen, from almost 100%
reflected image to almost complete transparency.

Maybe they have forgotten the trick?

[Robin]

Post by John Williamson

Post by J. P. Gilliver
(Would it work with more-or-less vertical flat sheets as in the carriage
windows?) Well, nobody seems to have thought of doing that either - or
if they did, it didn't work very well.

Yes, I alter the angle to control how much can be seen, from almost 100%
reflected image to almost complete transparency.
Maybe they have forgotten the trick?

Wouldn't that also reduce reflections from the gold, brass etc and so
suggest the palace staff - and the massed ranks of the armed services -
have failed to polish hard enough?

[Woody]

Post by Robin

Post by John Williamson

Post by J. P. Gilliver
(Would it work with more-or-less vertical flat sheets as in the carriage
windows?) Well, nobody seems to have thought of doing that either - or
if they did, it didn't work very well.

Yes, I alter the angle to control how much can be seen, from almost
100% reflected image to almost complete transparency.
Maybe they have forgotten the trick?

Wouldn't that also reduce reflections from the gold, brass etc and so
suggest the palace staff - and the massed ranks of the armed services -
have failed to polish hard enough?

The question of course is can bullet-proof glass be fitted with
polarising film?

[John Williamson]

Post by Woody

Post by Robin

Post by John Williamson

Post by J. P. Gilliver
(Would it work with more-or-less vertical flat sheets as in the carriage
windows?) Well, nobody seems to have thought of doing that either - or
if they did, it didn't work very well.

Yes, I alter the angle to control how much can be seen, from almost
100% reflected image to almost complete transparency.
Maybe they have forgotten the trick?

Wouldn't that also reduce reflections from the gold, brass etc and so
suggest the palace staff - and the massed ranks of the armed services
- have failed to polish hard enough?

The question of course is can bullet-proof glass be fitted with
polarising film?

As it comes as a self adhesive, thin plastic sheet, yes.

[John Williamson]

Post by Robin

Post by John Williamson

Post by J. P. Gilliver
(Would it work with more-or-less vertical flat sheets as in the carriage
windows?) Well, nobody seems to have thought of doing that either - or
if they did, it didn't work very well.

Yes, I alter the angle to control how much can be seen, from almost
100% reflected image to almost complete transparency.
Maybe they have forgotten the trick?

Wouldn't that also reduce reflections from the gold, brass etc and so
suggest the palace staff - and the massed ranks of the armed services -
have failed to polish hard enough?

The angle of polarisation of the reflections varies with the angles
involved, so unless the metal is flat, the odds are that enough will be
reflected at different angles to still show the shine off.

[MB]

Post by John Williamson
The angle of polarisation of the reflections varies with the angles
involved, so unless the metal is flat, the odds are that enough will be
reflected at different angles to still show the shine off.

Each of the carriages now seems to have large flat pane of glass at the
front. Could not do like you see in places like airfield control
towers, mount the glass at an angle?

"Why do air traffic control towers have slanted windows?
Air control towers have angled glass for a reason. Have you ever noticed
that every air traffic control tower has angled windows? Windows in
these towers have to be angled at precisely 15 degrees to decrease
reflections and glare."

[charles]

Post by MB

Post by John Williamson
The angle of polarisation of the reflections varies with the angles
involved, so unless the metal is flat, the odds are that enough will be
reflected at different angles to still show the shine off.

Each of the carriages now seems to have large flat pane of glass at the
front. Could not do like you see in places like airfield control
towers, mount the glass at an angle?
"Why do air traffic control towers have slanted windows?
Air control towers have angled glass for a reason. Have you ever noticed
that every air traffic control tower has angled windows? Windows in
these towers have to be angled at precisely 15 degrees to decrease
reflections and glare."

It also stops rain drops falling on them

[Robin]

Post by MB

Post by John Williamson
The angle of polarisation of the reflections varies with the angles
involved, so unless the metal is flat, the odds are that enough will be
reflected at different angles to still show the shine off.

Each of the carriages now seems to have large flat pane of glass at the
front.  Could not do like you see in places like airfield control
towers, mount the glass at an angle?
"Why do air traffic control towers have slanted windows?
Air control towers have angled glass for a reason. Have you ever noticed
that every air traffic control tower has angled windows? Windows in
these towers have to be angled at precisely 15 degrees to decrease
reflections and glare."

They are angled so things /inside/ the tower aren't reflected back at
them - things like staff, lights on displays and doors moving.

And a claim of a "magic angle" without regard to the refractive index of
the medium is absurd.

[BrightsideS9]

Post by Robin

Post by MB

Post by John Williamson
The angle of polarisation of the reflections varies with the angles
involved, so unless the metal is flat, the odds are that enough will be
reflected at different angles to still show the shine off.

Each of the carriages now seems to have large flat pane of glass at the
front.  Could not do like you see in places like airfield control
towers, mount the glass at an angle?
"Why do air traffic control towers have slanted windows?
Air control towers have angled glass for a reason. Have you ever noticed
that every air traffic control tower has angled windows? Windows in
these towers have to be angled at precisely 15 degrees to decrease
reflections and glare."

They are angled so things /inside/ the tower aren't reflected back at
them - things like staff, lights on displays and doors moving.
And a claim of a "magic angle" without regard to the refractive index of
the medium is absurd.

Aircraft nerds explain.
see:
https://www.aircraftnerds.com/2016/12/why-do-air-traffic-control-atc-towers.html

[Brian Gaff]

There may well be reasons why coaches are not allowed to be treated this
way. I have seen such comments about other vehicles where dignitaries ride.
Maybe its just a too modern concept. Maybe those really inside are body
doubles and the real people are sent there in closed in white vans.
Brian
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Nobody seems to have thought to apply antireflective coatings to the glass
in the various coaches, so we could see the occupants rather than a shaky
reflection of the outside. OK, it hadn't occurred to me either until it
did, but I'd have thought the problem would have showed up in assorted
rehearsals.
--
I can prove anything with statistics - except the truth.