Originally Posted by guitarman
He said he did suggest adding one the cost would have been around $10 a unit but higher ups wanted to keep the cost low. I say the company could have sold many more projectors with this small addition. CR would go way up and word of mouth on forums from videophiles recommending this new projector would sky rocket the sales. Who do they think are buying these projectors, not walk in store customers who no nothing of front projectors. It's the internet forums knowledgeable video members that make the sales.
Next time I hope they add this low priced and very valuable feature. Man they should have been adding this all along. Think of the sales they missed, wow open up your mind out there.
It would add a little more cost, but 2 irises like the Sharp 12k had (one before the DMD and one after, lined up pretty well) is even more magical as far as on/off CR with DLPs. The HT1000 had the iris in the lens like you mentioned and it worked well. The Sharp 10k around the same time did the same. Then Sharp went to 2 irises with the 12k. The first iris in the lens cuts the light a fair amount and increases the contrast ratio a fair amount (at least when done right and compared to having the lens be open). Then the 2nd iris cuts the light a small amount, but increases the CR quite a bit. I could explain the physics, but it gets a little long and you may have seen me go over that before.
Sharp had 3 modes for the irises, but a projector could just have 2. One for both irises open and one for both irises closed down. With single chip DLPs at least it is almost to the point that once you close one iris down, you might as well close the other one down some to go along with it.
If Optoma does an LED based projector I hope they will do something like this. Some might think that since LEDs can be dimmed there is no reason for manual irises, but that isn't the case because dimming LEDs dims white and black equally, while irises done right will dim black much more than white (increasing the native or static on/off CR). And when the user is given a choice they don't have to use the higher contrast ratio and lower lumens mode, but having modes like that has helped Sharp and Marantz sell projectors. Also, with a dynamic system with LEDs the higher the native on/off CR, the higher the dynamic on/off CR should be able to go with the same amount of side effects. So, if 2k:1 native on/off CR allows say 10k:1 dynamic on/off CR with LEDs, then 8k:1 native should allow at least 40k:1 dynamic with LEDs. Or something like that.
Also, as far as sales missed, I think you are pretty much on the right track. Despite some comments from luminaries and others in the industry against on/off CR that basically show they don't understand the physics/subject matter, higher on/off CR continues to be something that viewers see the improvement from and spend their money on. Just imagine how JVC sales would be if they weren't the on/off CR leaders. I get the impression that sales ratios between them and Sony largely swapped when JVC went from trailing Sony in on/off CR to leading them. And the SIM2 Lumis has gotten sales from leading 3 chip DLP in on/off CR. So, it would behoove manufacturers to pay attention to that, going along with what you said.