Disse to ligger jo omtrent likt i pris, og har ganske like specs. Hvilken er prosjektor er det beste valget? Hovedsakelig for film.
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07-06-2004, 15:23 #1
Optoma H-30 Vs Infocus SP-4805
07-08-2004, 19:10 #2
Hmm.. ingen som kan svare?
Tror jeg vil anbefale dette:
Spar masse penger, kjøp en BenQ PB6100 :wink:, nesten like god som H30 (litt overdrivelse). (se link i linken nederst til venstre, "test 6100") Eller å gå for en SP4805. Eller noen lapper til og du har en PE7800 8)
Nå bør vel noen reagere...eller har jeg rett :wink:
07-08-2004, 19:48 #3Opprinnelig postet av ohkaasa
Det jeg ville sjekket på SP4805 var at den kan vise et 4:3 bilde innenfor 16:9 brikken på en akseptabel måte.
Opprinnelig postet av Bidda
Opprinnelig postet av Projectorcentral
07-08-2004, 20:57 #4Opprinnelig postet av Tiger
However the PB6100 does not have a native 16:9 operating mode that allows a 4:3 image to be centered in the middle of a 16:9 screen like the H30 does.
07-08-2004, 21:11 #5Opprinnelig postet av Bidda
07-08-2004, 21:43 #6Opprinnelig postet av Bidda
Opprinnelig postet av Bidda
Personlig tror jeg 4:3 visningen fra SP4805 er akseptabel.
07-08-2004, 22:36 #7Opprinnelig postet av Tiger
Ser 4:3 (TV) i 16:9 format fra min 6100 og synes faktisk at dette er helt greit. Årsaken er at jeg rett pg slett ikke har plass på veggen til den høyden som 4:3 formatet gir ved 200 cm bredde på lerretet.
07-08-2004, 23:30 #8
Mange tykke mennesker på TV med andre ord. :wink:
Tenk å gjøre det mot værdamene. :shock:
07-08-2004, 23:35 #9Opprinnelig postet av Hi-Fil
07-08-2004, 23:36 #10
07-08-2004, 23:47 #11
Klippet et par innlegg fra avsforum.Nå skal en jo ta slike innlegg med en god del klyper salt,men uansett :wink: Tror f.eks at noen småting ang 4805 i sitatet nederst kan ses bort fra.
I spent more time with the 4805 last night. Right out of the box, I'd say it would provide an adequate picture for most people. Red and blue were muted compared with green, but some adjustment to the Gain with Avia took care of that. The 4805 is brighter than the H30, but not by much and I didn't have a problem using it with my matte white screen.
Fan noise of the 4805 is a decibel or two higher than the H30, but not at all objectionable. Just for fun, I put it into high power mode and I thought a jet was landing nearby. I can't imagine anyone using anything but the low power setting.
Since I already have a Faroudja-equipped DVD player (Panasonic RP82), there wasn't much difference switching between progressive and interlaced. Using the 4805's deinterlacing does give you a higher level of control (chroma and luna detail) as well as being able turn off CCS (which can't be done on most Faroudja-equipped DVD players).
In general, I found little difference between the 4805 picture and the H30 picture (in 16:9 Native). Screendoor is non-existent for both at normal viewing distances. The extra pixel count of the 4805 doesn't make an appreciable difference with DVDs, even when the H30's in 16:9 (800 X 450) mode. Remember, you're only talking about less than one hundredth of an inch in pixel width over a 80" wide screen. Throwing up a color field or two with Avia, it seemed that the H30 has better color satuaration, but it may be possible to achieve the same levels with the 4805. I'll have to do more tweaking.
Finally, I hooked up the Bravo D2 with a DVI cable and the InFocus M1 adapter (available separately unfortunately) and calibrated with Avia. The upscaled output of the Bravo (at 1080i) with a digital connection was an unbeatable combo. The picture became incredibly sharp and color saturation was improved as well. It probably similar to what Jason's been seeing with his HTPC setup and the H30. Using the now famous "Darla" scene as a comparison, the edge along the top of her finger was much cleaner than with the analog connection and the hair strands were more clearly defined. Is this a huge difference? No, not at normal viewing distances, but it is noticeable. I'll try to get some close-ups to demonstrate this.
I checked for focus and light uniformity across the screen and it did vary somewhat on the edges. The 4805 seems to have a finer focus than the H30. A slight movement of the focus ring can throw it off (much more so than the H30) and it is more sensitive to precise positioning relative to the screen.
Tom, I didn't notice a brightness push with the D2, at least no more than other DVD players. I didn't have a D1 around to compare, but there shouldn't be any difference in PQ between the two.
More to follow.just finished a two-hour H30 vs. 4805 comparison, and I'm pretty impressed with both units. We tried various configurations, including a DCDi DVD player, DCDi deinterlacer (4805), Pixelworks deinterlacer (H30), and a Silicon Image deinterlacer (iScan Pro).
Neither of us are experts, both new users, so we didn't do the most scientific analysis, but we tried a number of scenes from Finding Nemo and the Fifth Element (superbit).
The results were mixed.
Pros for the H30:
Quiet - the fan noise is definitely lower than the 4805, though the colorwheel noise I'm experiencing (i.e. "buzzing") is louder than the 4805's.
Color - the colors just sort of jumped off the screen a bit more with the H30, but we did not do a full calibration on the 4805.
Focus - the H30 actually had better focus, though we think his 4805 may be damaged (hence going back).
Pros for the 4805:
Picture quality - even with the focus problem, the 4805 had an amazing picture (equal, if not slightly better than the H30).
Deinterlacer - the DCDi on the 4805 is clearly superior to the H30's Pixelwork chip (duh), although the DCDi in my DVD player, fed to the H30 was a pretty even matchup.
SDE - the screen door was better on the 4805 in my opinion (we're unsure as to if this is a problem with the focusing on the 4805, but the inter-pixel lines on the H30 were clearly more defined, thus presenting more "screen door")
1) His 4805 had a dead pixel, almost centered right out of the box. I've rarely, if ever heard of this on the H30.
2) The 4805 had some VERY different default brightness/contrast settings for interlaced vs. progressive. When we sent an interlaced signal defaults were far better, IMHO. When sending a progressive signal, the image was overly bight and washed out.
3) The H30 is smaller and lighter than the 4805. More than I had expected. Neither would be a problem, though the 4805 obviously can't be mounted with a single 1/4-20 screw, like the H30 can.
4) The 4805 had problems focusing. Parts of the image were always slightly out-of-focus. We chose a "best" setting that made the image as clean as possible.
If I were buying new today, I think I would choose the 4805, though I'm not sorry at all about buying the H30. The money I saved on the H30 made it possible to buy the iScan Pro (I think I still spent less than $1400 for it all). The DCDi on the 4805 is as good or better than the Silicon Image iScan product. We tested several images as follows:
1) DVD player w/ DCDi (interlaced) - H30 - Pixelworks deinterlacer
2) DVD player w/ DCDi (progressive) - H30 - bypass deinterlacer
3) DVD player (interlaced) - Silicon Image deinterlacer - H30
4) DVD player w/ DCDi (interlaced) - 4805 - DCDi deinterlacer (4805)
5) DVD player w/ DCDi (progressive) - 4805 - bypass deinterlacer
The ranking, best-to-worst, was as follows:
4 - 2 - 3 - 5 - 1
The 4805 has a great deinterlacer, no question about it. (As does my DVD player, which has the same chip).
That's about it. Cleary, the 4805 unit being tested has some issues, but it still gave a stunning image. The H30 is no slouch, certainly. I think going either way, would be totally fine. As many have said, if you want the 800x600 - go H30, otherwise, I think the 4805 is THE sub-$1500 projector to own.
07-09-2004, 09:59 #12Opprinnelig postet av Hi-Fil
Har tenkt (farlig det :wink: ) litt på denne: H30 er en 4:3 pj som da viser 16:9 (full bredde) på denne brikken. Den bruker heller ikke høyden ved 4:3 visning? Blir bare forvirret av dette. Vennligst gi en god forklaring med teskje, please :lol:
07-09-2004, 10:17 #13
Det er ulike utgaver av H30. Det vil si; det er ulike firware-versjoner på H30.
Den eldste hadde elektronisk maskert 4:3 (800x600) ned til 16:9. For å vise uforvrengt 4:3 materiale på den utgaven ble 4:3 bildet vist innenfor 16:9 feltet.
På en H30 med ny firmware så er den elektroniske maskeringen tatt bort, og 4:3 materiale kan nå vises i hele brikkens arbeidsområde (800x600).
Det er verdt å nevne at ved bruk av HTPC så er det ikke noen praktisk forskjell, da signaler inn på VGA-inngangen ikke ble begrenset av den elektroniske maskeringen de første H30 hadde.
07-09-2004, 11:14 #14
Og på H-30 med ny software kan fremdeles 4:3 vises inni 16:9 rammen,i tillegg til full 4:3 som tigern skrev.
En forhåpentligvis forståelig oversikt.
4 knapper for format: -----Ny software --------Gammel software
07-09-2004, 11:56 #15
Takker for forklaringen, bedre forståelse for funksjonen nå :lol:
Siste oppgradering på H30 ble mere riktig da 8) og H30 hadde faktisk passet meg da jeg ikke kan ha høyere bilde enn 16:9. Hadde unngått de "tykke" damene som Hi-Fil ikke liker :wink: