I am new to the forum but not new to home theater projectors; I built a custom home theater in my basement in 2006 and have had the same Optoma dlp projector until recently. After installing a new lamp in my 6-year old Optoma HD7100 dlp projector, less than 2 hours later I could hear the lamp blow up and after replacing the lamp the projector would not power up. After getting it looked at I was informed the power supply & ballister are no good and need to be replaced. The HD7100 has been discontinued and Optoma no longer has parts for this model so this has basically become a $2,600 throw-a-way projector. I must say that I was not impressed with Optoma's service center/customer support regarding this matter after trying to get parts and a solution to my problem. I'm still at loss as to how a power supply & ballister can suddely fail less than 2 hours after installing a new lamp. In any event, I moved on and purchased an inexpensive LCD projector, the Epson Home Cinema 8350. After using it for a couple weeks I returned it for a refund because there was significant motion judder/motion blur and occasional screen door effect. I upgraded to the highly rated Epson Home Cinema 5020, another 3LCD projector, and still had motion judder/motion blur and some screen door effect; I returned this projector. Then I upgraded to the highly rated Sony VPL-HW50ES, a LCos projector, and still had motion judder/motion blur but no screen door effect. The motion judder on these projectors was frequent on high definition television when watching sports such as golf, basketball, baseball, ice hockey etc. The Epson projectors had both motion judder & screen door effect. The Sony did not have screen door effect but the motion judder/blur may have even been slightly worse on the Sony vs. the Epson. Overall, the Sony VPL-HW50ES was definately the better projector in my opinion over the Epson Home Cinema 5020. The Sony was very quiet, if not dead silent with spectacular color and greater sharpness, particularly with the Reality Creation sharpness enhancer; also, the Sony's dynamic iris was smooth, silent & unnoticeable. The Epson had good color, not quite as good as the Sony. However, the Epson was very loud, especially at full lamp power and the dynamic iris was loud and very noticeable. As far as motion judder/blur, these LCD & LCos projectors performed very well with no issues on Blu-ray DVD but the motion judder/blur was so significant and prominent on HD sports content (Charter Cable HD TV) that it was an absolute deal breaker for me and I ultimately returned the Sony projector as well. The creative frame interpolation (CFI) on the Epson & Sony do help minimize motion judder/blur but certainly do not eliminate it. With CFI engaged it introduces other unnatural motion artifacts often referred to as amateur video/soap opera effect, which is not desireable to me. Thus, I'm convinced that LCD & LCos technologies are indeed inferior to dlp when it comes to motion judder/motion blur because I never experienced motion judder with my 6-year old Optoma HD7100 dlp projector, especially when it comes to HD television sport viewing. Keep in mind that I probably watch 75% HD sports in my theater and only 25% blu-ray movies. In fairness, the LCos Sony VPL-HW50ES is an excellent overall projector, particulary on 2D movies & blu-ray content; The Sony does produce a spectacular image with the blu-ray movies I watched on it but with my type of viewing content being mainly HD TV sports, I could not live with the motion judder on the Sony and returned this projector as well. At this point I'm not really into 3D... I really just want good color with a sharp, crisp 2D image and now I know that dlp is the way to go for me because in my experience dlp technology is in fact superior in sharpness & motion over LCD & LCos technologies. I did not even try the 3D on the Epson or the Sony because 3D would be less than 5% of my viewing and it's not important to me right now. Needless to say, I'm going back to dlp and did research on some dlp projectors including the Optoma HD8600, HD8300 & HD8200. I also considered the Mitsubishi HC7900 & HC8000, the BenqW7000, Vivitek H5085 and the Sharp XV-Z30000. I ultimately chose the Sharp XV-Z30000 despite it not having CFI because I prefer it not engaged anyway. My old Optoma HD7100 dlp did not have CFI and I never experienced motion judder with the Optoma so I'm hopeful that I get the same motion judder-free image with the Sharp dlp as well. The Sharp XV-Z30000 is suppose to arrive within the next day or two so I will update my viewing results once I've seen the Sharp in action. Any addtional thoughts, comments or experiences are certainly welcome.
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