Originally Posted by bdht
RGB solid state dlp is improved over your F30. The color performance alone compared to the color wheels, an expanded gamut ranging from p3 to bt2020, improved color depth, reduced solarizations, 100% color brightness at higher light output. Contrast can be much improved with dlp but its expensive as its through light path/optics improvements and gamma compensated dynamic lamp dimming, but can range from 10k to 30k with minimal to no perceived artifacts. All these things improve perceived sharpness as well. Summit video performance is currently DLP, I dont think microled can be acoustically transparent yet=/
What it really lacks is 4K with its higher resolution and larger color gamut and higher brightness dynamic range than Bluray. But to benefit from a projector offering that I would need to upgrade my source material as well as the projector. As currently I watch Blurays and DVDs on it.
Laser projectors are obviously far superior to lamp based projectors in terms of the light source being efficient at D65 rather than trading brightness to get to D65, and far better at producing a wider color gamut without needing to trade brightness, and far better at brightening and dimming for increased sequential contrast. And they last far longer, retain their brightness, use less electricity and require less cooling. Lasers are far better suited to projectors than UHP lamps.
The color reproduction of the F30 is however good enough that the same projector was marketed as Cineo30 to the TV and film post production market as a low cost option instead of using a 3 chip projector. There was also a Cineo30 DCI version for digital cinema post production and small screen cinema shows.
In its day the whole point of the F30 using two 300 Watt lamps was more brightness and the whole point of it using RGBYCM colorwheels was improved color brightness at higher light output. While a RGBYCM colorwheel has or at least gives the option of a wider color gamut than REC709 with less loss of brightness than using a RGBRGB colorwheel. As for bit depth it is capable of displaying 10 bits per color. There is no solarization. And despite its brightness I see not DLP rainbow effect.
What the F30 lacks as far as lamp based projectors goes is Philips VIDI or Osram Unishape where the lamp power is synced to the colorwheel segments enabling increasing red and decreasing green for more D65 light output for a given lamp Wattage. And it lacks Dynamic Black where lamp power or a iris is synced to the frame content and gamma adjusted to enable higher sequential contrast without causing visible light pumping. So yeah it lacks the sequential contrast of more modern projectors.
As far as native contrast goes the F30 uses a 1080 Darkchip3 0.95" chip with mirror tilt of 12 degrees which TI stock design gives >2300:1. Not a modern consumer projector 4K 0.66" or 4K 0.47" with mirror tilt of 17 degrees. Its light path to the DLP chip is good as there appears to be no overfill of the DLP chip, and there is a adjustable iris in the middle of the projector lens that can be adjusted from F2.1 to F6.5 for about 1,200:1 at 4,100 ANSI lumen to 7,500:1 at about 800 ANSI lumen. What probably limits its native contrast is the mirror tilt being 12 degrees and I think it is a TIR design as it has a lot of vertical and horizontal lens shift.
As far as image sharpness goes using a larger DLP chip helps and the EN13 lens specification is 38 lp/mm MTF 60% min corner 50% min. Lateral color 450-650nm < 7 micron 440-670nm < 9 micron. Optical distortion within 0.54% at wide position at 3mtrs projection distance, within 0.11% at tele position at 3mtrs projection distance. There is no visible chromatic aberration and the lens focus across the screen looks perfect and it is razor sharp. If it is not perfect focus across the screen due to manhandling by the lens then it can be adjusted using allen keys although the end user is not supposed to need to instructions for doing so were including in the manual for a later version of the projector.