Not that I know of on any stream. You can get files of many of them, but I >wonder what the relevance is now. Since the bandwidth varies it seems >adaptively to give compression, how can one use the test card to test >definition. Brian
Anyone here remember the magic FreeView sequence? IIRR it involved the changing channel, and the yellow or green button[s].
In message <uota70$28igo$1@dont-email.me> at Thu, 25 Jan 2024 09:38:37,
Brian Gaff <brian1gaff@gmail.com> writes
Not that I know of on any stream. You can get files of many of them, but I >wonder what the relevance is now. Since the bandwidth varies it seems >adaptively to give compression, how can one use the test card to test >definition. Brian
Thinking about it, I think virtually all the things it helps with: convergence, scanning, orientation, bandwidth - are no longer a problem
(at least, no longer adjustable!) - with discrete-element display
panels. About the only remaining use I can think of are contrast, gamma,
and so on, though maybe there are some others those here can think of.
J. P. Gilliver wrote:
Anyone here remember the magic FreeView sequence? IIRR it involved
the changing channel, and the yellow or green button[s].
I wouldn't remember it, but ukfree.tv is useful for a change ...
<https://ukfree.tv/article/1107052442/How_do_I_get_a_test_card_with_Freeview_>
J. P. Gilliver <G6JPG@255soft.uk> wrote:[]
Thinking about it, I think virtually all the things it helps with:
convergence, scanning, orientation, bandwidth - are no longer a problem
(at least, no longer adjustable!) - with discrete-element display
panels. About the only remaining use I can think of are contrast, gamma,
and so on, though maybe there are some others those here can think of.
I have drawn one which I use as my first slide for setting up
slideshows. It helps to check focus and that the screen is filled and >keystone distortion is corrected. The contrast wedges are a quick check
that ambient light isn't washing out the blacks.
In message <1qnw8sb.1f90rwdgaszmaN%liz@poppyrecords.invalid.invalid> at
Thu, 25 Jan 2024 14:50:37, Liz Tuddenham
<liz@poppyrecords.invalid.invalid> writes
J. P. Gilliver <G6JPG@255soft.uk> wrote:[]
Thinking about it, I think virtually all the things it helps with:
convergence, scanning, orientation, bandwidth - are no longer a problem
(at least, no longer adjustable!) - with discrete-element display
panels. About the only remaining use I can think of are contrast, gamma, >> and so on, though maybe there are some others those here can think of.
I have drawn one which I use as my first slide for setting up
slideshows. It helps to check focus and that the screen is filled and >keystone distortion is corrected. The contrast wedges are a quick check >that ambient light isn't washing out the blacks.
Interesting thought - setting up for slideshows, videos etcetera.
I continue to be surprised how many cases there are where nobody thinks
to turn off the room lighting, even just at the front near the screen,
and even the implication that you're a bit demanding if you ask for that
to be done (let alone be so presumptive as to do it yourself).
Interesting thought - setting up for slideshows, videos etcetera.
I continue to be surprised how many cases there are where nobody thinks
to turn off the room lighting, even just at the front near the screen,
and even the implication that you're a bit demanding if you ask for that
to be done (let alone be so presumptive as to do it yourself).
On Thu, 25 Jan 2024 16:38:28 +0000, "J. P. Gilliver"
<G6JPG@255soft.uk> wrote:
Interesting thought - setting up for slideshows, videos etcetera.
I continue to be surprised how many cases there are where nobody thinks
to turn off the room lighting, even just at the front near the screen,
and even the implication that you're a bit demanding if you ask for that
to be done (let alone be so presumptive as to do it yourself).
More than once I've been asked if it's necessary to turn off the flash
when taking photographs of a TV screen.
This was in the olden days when cameras used film so you couldn't see
the picture immediately, but even today, now that you can, it's
surprising how many people are content with pictures that have silly
faults that could easily have been corrected just by taking them again straight away. It seems to indicate not just a lack of understanding
but also a lack of care.
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