AB Chan Posted April 30, 2013 Posted April 30, 2013 Hi Guys, If you are looking for a sub $2K 3D Full HD projector, Optoma has just brought in their new HD 25. The HD25 uses TI's latest triple flash 4244 Dark Chip 3 which switches 3D at the optimal rate of 144Hz. 3D now is simply stellar - smooth, fluid with more depth, pop and is ghost-free. You are welcome to view it at our shop @ The Adelphi today and on Labour Day as well.
AB Chan Posted May 1, 2013 Author Posted May 1, 2013 Does it come with 3D glasses? Yes, it comes with a 3-year local warranty and one pair Optoma's RF 3D glasses and emitter.
desray Posted May 1, 2013 Posted May 1, 2013 Came across a review a couple of days ago on this projector...overall not bad for what you are paying for. Its inclined towards the noisy side...so if you plan to sit near the projector, then this may be a problem. Another is the rather noticeable RBE for some. Not sure about the color wheel speed...if it the same as its predecessor HD80 at 6X...then it should be fine. In terms of 2D and 3D, it quite good... Here's the review I read: http://www.trustedreviews.com/optoma-hd25_Projector_review
AB Chan Posted May 1, 2013 Author Posted May 1, 2013 Hi desray, Comparing the many DLP projectors I have gone through all these years, Optoma has managed to tame RBE on the HD25 very well. So far have noticed very little RBE on this projector.
chaozhoi Posted May 1, 2013 Posted May 1, 2013 wondering if it is a good upgrade from my Epson TW1000
alf Posted May 1, 2013 Posted May 1, 2013 The only concern will be the throw distance as optoma like to make long throw lens . Obtaining the desire picture size will be challenge for some rooms .
AB Chan Posted May 2, 2013 Author Posted May 2, 2013 Not really that much. For a 100" screen, minimum throw distance required is 3.3M. For really short throw, we have the BenQ W1080ST. With the W1080ST, min distance for 100" is only1.5M.
chaozhoi Posted May 2, 2013 Posted May 2, 2013 read from review that HD25 lacks vertical lens shift. Wonder if it's true, if yes then it could be another problem also.
desray Posted May 2, 2013 Posted May 2, 2013 read from review that HD25 lacks vertical lens shift. Wonder if it's true, if yes then it could be another problem also. I haven't really check out the full specs yet...but at this price range, I am not surprised. Even its big brother, HD33 or HD8300 also dun have vertical len shift feature IIRC.
alf Posted May 2, 2013 Posted May 2, 2013 Hi desray, Comparing the many DLP projectors I have gone through all these years, Optoma has managed to tame RBE on the HD25 very well. So far have noticed very little RBE on this projector. Ah very nice and with lens shift it will be even more ideal .
AB Chan Posted May 3, 2013 Author Posted May 3, 2013 Lens shift only makes installation easier for the installer but shouldn't be a problem. Simply drop by our shop, see the demo and we can work out the throw distance for the room, the screen size and vertical off-set. The projector is small, light weight and a lot easier to manage and install than most other projectors. :)
AB Chan Posted May 3, 2013 Author Posted May 3, 2013 Hi desray, The Optoma HD83 does have a vertical lens shift. The HD25 is positioned as a budget projector but with special emphasis on giving excellent value-for-money 2D and 3D video performances. Susprisingly, it also has an effective CMS (Colour Management System), a 6,000-hour lamp and, with its new TI triple-flash chipset, gives better-than-average 3D viewing without ghosting.
AB Chan Posted May 3, 2013 Author Posted May 3, 2013 wondering if it is a good upgrade from my Epson TW1000 We suggest either the Panny AE8000 or the JVC RS46.
desray Posted May 3, 2013 Posted May 3, 2013 Agreed...Optoma OOTB colors are quite 'accurate' and so is the grayscale tracking.
Calvin Tan Posted May 3, 2013 Posted May 3, 2013 Theres also a hd25LV version with better lumens and price increase
zermat Posted May 5, 2013 Posted May 5, 2013 Hello Mr. Chan, I am very surprised that this budget projector is using Texas Instruments' triple flash 3D technology which till now is only used in high-end SIM2 Lumis 3D-S projectors and Barco and Christie in their commercial 3D cinema projectors. Triple flash technology means that for 24fps movie sources, each eye is presented with 3 flashes of each frame, giving an overall frame rate of 144fps which according to video engineers will get rid of image flicker and motion judder in 3D due to no processing is required. [24fps x3 =72fps and 72fps x2(left and right eye)=144fps]. Furthermore, the new 4244 DLP chip is a Dark Chip3 which would have a higher native contrast ratio. But how's the RBE? Should be better if they can do 72fps for 2D, I suppose?
econav Posted May 5, 2013 Posted May 5, 2013 The dif ? 3 DLP chip with liquid coolant vs 1 = must work 3x harder ;D
AB Chan Posted May 6, 2013 Author Posted May 6, 2013 Hello Mr. Chan, I am very surprised that this budget projector is using Texas Instruments' triple flash 3D technology which till now is only used in high-end SIM2 Lumis 3D-S projectors and Barco and Christie in their commercial 3D cinema projectors. Triple flash technology means that for 24fps movie sources, each eye is presented with 3 flashes of each frame, giving an overall frame rate of 144fps which according to video engineers will get rid of image flicker and motion judder in 3D due to no processing is required. [24fps x3 =72fps and 72fps x2(left and right eye)=144fps]. Furthermore, the new 4244 DLP chip is a Dark Chip3 which would have a higher native contrast ratio. But how's the RBE? Should be better if they can do 72fps for 2D, I suppose? To use the words of one reviewer, RBE is "discrete". Anyway, I would sum this up by quoting this same reviewer:- "Small size and small price for a big picture that offers 2D and 3D quality nobody could hope for a few months ago." You got to come and see it.
Doggie Howser Posted May 6, 2013 Posted May 6, 2013 Is triple flash just a way of saying more color in wheels? Ie 6x etc? Ps the banter between AB and zermat sure sounds very Samsung Shill-like :)
alf Posted May 6, 2013 Posted May 6, 2013 Yeah , as the old saying goes seeing is believing . Most of the time specification are written to enhance the marketing of the products as we all know . Just have to go and experience for your self .
desray Posted May 6, 2013 Posted May 6, 2013 Hmmm...must go down see see look look...about this so-called new 'triple-flash' hype :P
DizzyD1624705734 Posted May 7, 2013 Posted May 7, 2013 AB Chan Short throw is something that i need. I wanted to go into DLP for a long time so this might be the winner for me. My screen size is 92" I think. I will swing by to have a look. Thx
AB Chan Posted May 7, 2013 Author Posted May 7, 2013 Is triple flash just a way of saying more color in wheels? Ie 6x etc? Triple flash increases the frame rate of the projected picture, not the colour of the colour wheel. Illustration below from Christie Digital might throw some light on how it works - Each frame of a 24fps movie is flashed 3x to the left eye and 3x to the right eye alternately, increasing the overall total frame rate to 144fps. No processing of each frame is involved. and from SIM2 - Triple flash is a system developed for, and used in, commercial 3D cinemas. Triple flash eliminates the flicker and ghosting normally associated with active shutter 3D whilst giving smoother motion. This makes active shutter 3D viewing much more relaxing on the eye, just like at commercial cinemas. Triple flash increases the refresh rate to a level well beyond the normal flicker fusion threshold of humans whilst maintaining smooth motion due to both eyes receiving 3 refreshes per frame. Thus triple flash reduces the incidents of fatigue and nausea that can be associated with active shutter 3D technology. Hope this helps :)
AB Chan Posted May 7, 2013 Author Posted May 7, 2013 AB Chan Short throw is something that i need. I wanted to go into DLP for a long time so this might be the winner for me. My screen size is 92" I think. I will swing by to have a look. Hi DizzyD, We have yet to receive the short throw projector from BenQ and only have the Optoma on demo at the moment. Will get in touch once we can get hold of a demo unit. So sorry. thx
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