Amiga.org
Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: orb85750 on February 13, 2009, 02:54:21 AM
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Has anyone actually tried one of these things?
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ssPageName=STRK:MEWAX:IT&item=260307314010
Does it work? Does it work for AGA? Flicker-free???
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Search the forums, they have been discussed numerous times. The general consensus was they aren't worth it, and look bad.
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I thought about getting one of those for my A1200, but wasn't convenced I would get video any better then what I already had. I used a Viewsonic VB50HRTV (http://www.viewsoniceurope.com/UK/Products/Video_Box/VB50HRTV.htm) to view my amiga on my LCD. Video was ok, except for some bleeding of colors and blurry text. But I was getting my video source through the composite port.
IMO, if you have an A1200, the indivision AGA 1200 internal scan doubler/flicker fixer (Indivision AGA1200 SD/FF (http://amigakit.leamancomputing.com/catalog/product_info.php?products_id=821)) is well worth spending a little more.
I, too, would like to know the results of using the VGA Converter Scaler, as that may be a viable choice to display my A500 with better video then with the Viewsonic TV box thing.
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I was thinking of buying one because it would allow me to use my A2000 with a pc monitor and still b able to use my Video Toaster which needs to sync to the native Amiga 15khz signal.
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AmigaPixel wrote:
I was thinking of buying one because it would allow me to use my A2000 with a pc monitor and still b able to use my Video Toaster which needs to sync to the native Amiga 15khz signal.
There will be an A2000 version of Indivision soon. It should not interfere with your Toaster.
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Really? Ummm... Jens, count me in. Please and thank you!
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The CGA/RGB input is a 15pinHD, so you'll need to make yourself a 23 to 15 monitor cable because the "proprietary adapter cable" they supply only changes the socket to an RGB DB9pin.
Also they're promoting the product as:
The only product in the market that supports true 16:9 output with native wide screen resolution at 1366x768 pixels for LCD TV or LCD/TFT monitor size larger than 17".
1366*768 is not an official true widescreen standard. Besides it states further down:
3 selectable >>>VGA<<< output resolutions: 640x480 pixels, 1024x768 pixels and 1366x768 pixels.
So basically you have to switch between the upscale you want and as your source is only 4:3 your so called wide screen resolution is just gonna be a stretched 4:3 image to fit anyway.
Nowhere does it state either what "technology/chips" are being used in the filtering and re-building of the original source input to the upscaled output either.
As the amiga's RGB is old and pretty limited technology by todays standards, I personally doubt very much to expect very high results in the final image displayed on a HD LCD monitor.
Its just gonna look comparative to an output from amiga RGB to an RGB SCART LCD, in my opinion.
But then I'm just a bush kangaroo, so what do I know. ^_^
The only convenience I can see this product having is basically allowing you to 'plug n play' CGA inputs into VGA monitors hassle free.
Skippy.
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Iggy_Drougge wrote:
AmigaPixel wrote:
I was thinking of buying one because it would allow me to use my A2000 with a pc monitor and still b able to use my Video Toaster which needs to sync to the native Amiga 15khz signal.
There will be an A2000 version of Indivision soon. It should not interfere with your Toaster.
great! I'll keep an eye out for it. :-D
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Skippy wrote:
The CGA/RGB input is a 15pinHD, so you'll need to make yourself a 23 to 15 monitor cable because the "proprietary adapter cable" they supply only changes the socket to an RGB DB9pin.
If I understand correctly it is a 9 pin to 15 pin and judging by the image it comes with a 9 pin male to 15 pin adapter. So you should be able to connect your standard 23 pin to 9 pin Amiga cable to the proprietary cable. But I could be wrong though.
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Iggy_Drougge wrote:
There will be an A2000 version of Indivision soon. It should not interfere with your Toaster.
Wow! New hardware still being developed for Amiga's? And even for the A2000? Amazing, but much needed because the flicker in high res modes is just totally obnoxious.
Where can we check up on availability of the A2000 Indivision? I might need to get one for the Two Aught Tower I am building, and keep my old Flicker FIxer and Picasso II in my desktop Two Aught.
Now if they were only still building 060 accelerators... :-D
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@AmigaPixel:
Yeah, you are absolutely correct. The original amiga RGB cable is 23 pin to 9pin female that would connect straight into the male 9pin "proprietary adapter cable".
I was thinking along the lines of the simplicity of one purpose built cable that connected directly to the monitor from the amiga.
Not a 'hotch potch' of several metres of amiga cable, an adaptor and then a further monitor cable comprising the integrity and I guess the sole intension of "upscaling" to a so called higher definition of video standard as claimed.
The other issue of concern I forgot to pick up on was:
# Auto detection of RGB inputs including RGsB (sync on G), RGBS, RGBH/V and RGBH+V composite sync with sync level above 2 vpp, 75 Ohm.
It doesn't state whether these built-in auto detection features include detection and correction of image positioning to monitor and if the gizmo works in a 'plug n play' fashion of determining what type of monitor is attached to calculate accurately where and how to if so centre the input source.
I mention is because I have several LCD monitor/tvs that when an amiga is connected say via RGB scart the monitor "recalibrates" the image to ensure its best fit and positioning on the screen. However, not ALL of the LCDs I have support this feature OR can get confused resulting in a "jumping" about image*.
So you could find yourself with an offset image. Furthermore if it does have support is it taking into consideration the overscan offsets or just finding the borders of an image to work from.
This may seem like nick picking but it is valid when your sat looking at an image either hanging off one side of the monitor or constantly bouncing about being recalibrated everytime the image changes on the screen. IE: *different DIWSTOP and DIWSTRT positions by the programmer.
Skipster.
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Now if they were only still building 060 accelerators...
+1
:)
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@Skippy
You raise very good points. You detailed some issues that were in the back of my mind and some I had not even thought of. I am glad I didn't buy one with out further research. :-)
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@AmigaPixel.
Those were some the issues raised in my mind and reasons why I didn't feel 'my' a1200 warranted a fancy high definition monitor and spending costly abouts on upgrading suite.
So myself I settled upon a LCD TV unit that I felt realistically 'improved' the appearance of my a1200 via
RGB SCART within the technological parameters and practical application of uses set out by my personal
requirements. So I chose to stay within the 15Khz range for cost and convenience.
I am glad I didn't buy one with out further research.
Well after all it is ones money investing into the Amiga.
But don't get me wrong, if I had the spare cash I'd certainly install an Indivision inside my miggy ;-)
Take care.
Skiptastic there mate.