2.35 or 2.40?

[red-blu]

I'm hopefully diving into the projector world soon (and hopefully at more than just 16x9) and I was just wondering if the anamorphic lens results in a 2.35:1 or 2.40:1 image?

I'm definitely thinking of going the DIY route for the screen and I don't know if I just am not looking hard enough, but it seems like both ratios are discussed almost interchangeably. Any help?

[Deciazulado]

1.7777 x 1.3333 = 2.37

810 x 1.3333 = 1080

As for the exact result from the scaler + lens you probably have to throw a pixel count test pattern and use a tape measure at the plane of the screen.

[gosawx]

Originally Posted by Deciazulado

1.7777 x 1.3333 = 2.37

810 x 1.3333 = 1080

As for the exact result from the scaler + lens you probably have to throw a pixel count test pattern and use a tape measure at the plane of the screen.

maybe I did it "the dummy way", but I just put up a 2.35:1 movie(King Kong, I think), marked it off, and painted the screen. I knew that 2.40:1 would leave TINY (and they are unnoticable) black bars. I zoom and adjust for 16:9, or usually just watch it on another set, as those movies are usually comedies, etc.

[Disky76]

Originally Posted by gosawx

maybe I did it "the dummy way", but I just put up a 2.35:1 movie(King Kong, I think), marked it off, and painted the screen. I knew that 2.40:1 would leave TINY (and they are unnoticable) black bars. I zoom and adjust for 16:9, or usually just watch it on another set, as those movies are usually comedies, etc.

If you are going with an anamorphic lens/sled, then I would go for the 2.4:1 screen. I built my masking panels to adjust for ratios - and I did that after the first time that I put a 2.4:1 movie in when I had my screen size adjusted for 2.35:1.

Yes, there will be very small black bars when viewing a 2.4:1 film on a 2.35:1 screen...but if you are like me, you will notice them - no matter how small they may be.

Better option would be a 2.4:1 screen with adjustable masking. You could have different settings for 2.35:1 and 1:85:1. Even without the masking, tiny pillarboxes, I think, would be less noticeable...or easily and inexpensively covered by drapes.

[red-blu]

Thanks for the help guys!

Disky- does your projector itself handle all the aspect ratio changes? I couldn't find all the info on your model, but it appears the newer Mitsubishi projectors do?

"HC3800 HD Projector"
"Anamorphic lens compatibility widens range of cinema-scope images (support for mode 1 and mode 2)"

Does than mean it is ready for an external anamorphic lens, or is it a built-in type feature?

[JBL4645]

A quick view glossary of the (Mitsubishi HC3800 HD Projector) specifications

http://docs.google.com/viewer?a=v&q=...Dcj-r8ULSpfUhQ

I see no reason why the lamp shouldn’t last for 39 months use with moderate use of 4 hours per each day or maybe less. Lamp is around £249.00.

[red-blu]

So it handles the aspect ratio changing (bypassing a need for a scaler or a dvd player capable of doing so)... but still need the anamorphic lens, right?

I'm really debating on how much DIY I want to try to go. I've found a few anamorphic lens under $2000 online without searching very long. I don't have too much faith in the DIY anamorphic lens despite seeing a few here. Anyone have one of the cheaper professional lens?

[JBL4645]

There is no way I’d pay £1000 pounds for anamorphic lens because, I’m tight! I’d pay £50.00 pounds, yes, but not £one grand

[HyperRealist]

I would never buy an anamorphic lens because all you need to do is zoom... Get a Panasonic PT-AE4000U with lens memory and all you have to do is push one button on the remote.

[JBL4645]

Originally Posted by HyperRealist

I would never buy an anamorphic lens because all you need to do is zoom... Get a Panasonic PT-AE4000U with lens memory and all you have to do is push one button on the remote.

I just manually reduce the size of the image for W/S where (narrow black bars) are to and bottom and where scope has (thicker black bars) top and bottom, I just size the image up so it appears smaller since in the cinema W/S is same height just smaller in width

[Disky76]

Originally Posted by red-blu

Thanks for the help guys!

Disky- does your projector itself handle all the aspect ratio changes? I couldn't find all the info on your model, but it appears the newer Mitsubishi projectors do?

"HC3800 HD Projector"
"Anamorphic lens compatibility widens range of cinema-scope images (support for mode 1 and mode 2)"

Does than mean it is ready for an external anamorphic lens, or is it a built-in type feature?

No, the HC-1600 does not have the option for the different aspect ratio changes. The HC-1600 does not have a V-stretch mode.

So, I built a masking system that does the adjusting - hiding the black bars for wider movies, and I move the panels to the top and bottom (opening up the screen) for 1.85:1. I painted the panels to match my draping system and it works quite well. The projector does not need to be moved, nor do I need to zoom.

The panels are actually made out of industrial insulating foam (painted) that I picked up at Home Depot. They are attached to the screen with heavy duty velcro, which is measured and marked for different aspect ratios (2.2:1-2.4:1). They are attached to the edges (top and bottom) of the screen when they are "open" for 16:9.

It's a pretty simple system, but it does the job well.