ผู้เขียน หัวข้อ: OPTOMA H 27 กับ INFOCUS 4805 อันไหนภาพสวย และ น่าเล่นกว่ากันครับ  (อ่าน 3148 ครั้ง)

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ออฟไลน์ Help !!!

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แล้วถ้าไปหิ้วจาก HK กับ SG ที่ไหนถูกกว่าครับ

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กระทู้นี้เป็นกระทู้ที่เพื่อนๆที่ยังไม่ได้สมัครสมาชิกฝากถามมา ก็ขอความอนุเคราะห์จากเพื่อนๆสมาชิก ช่วยตอบให้ด้วยนะคร๊าบผม...ขอบคุณมั่กๆครับ...

ออฟไลน์ Puccainlao

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ของหิ้วไม่ทราบครับแต่ส่วนตัวบอกอย่างเดียวว่า H27โดนใจสุดๆใน ระดับเดียวกันผมเคยเห็นภาพมาแล้ว ครับ สีสดอิ่มได้ใจดี แต่ผมเห็น RBE ครับ

 http://projectorreviews.com/review.asp?reid=46 อันนี้ เข้าไปดูนะครับ
 
 
 07/26/2005 - New Optoma H27 Entry Level, DLP Home Theater Projector under review. Posting of review expected 7/31

Optoma’s new H27 home theater projector is replacing their well reviewed H31 model. The new H27 projector, offers improved contrast – claiming 4000:1, thanks to contrast enhancing AI circuitry. The older H31 specs at 3000:1. In addition the new H27 has numerous other improvements, is quieter, and has a lower list price. Our evaluation unit is calibrated and looks great. Look for our review this weekend.
 
 ส่วน 4805 คงให้ท่านที่ใช้หรือผู้ที่เคยเห็นมาเล่ากล่าวดีกว่าครับ
 

ออฟไลน์ TONSON

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INFOCUS4805  ผมเคยเห็นแล้วครับจัดโชว์โดย magnet ต่อกับ sumsunghd 850 ทางdvi จอ 72 นิ้ว ถาพที่ได้สวยมีมิติดีครับ เหมาะสำหรับงบไม่เกิน7-8 หมื่นครับอันนี้ตอบตามความเห็นส่วนตัวครับคงต้องหาโอกาสไปดูด้วยตนเองครับ :)

ออฟไลน์ TONSON

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อ้อ! ลืมไป  ;) คลิ๊กเข้าไปบอร์ดซื้อขายก็มีภาพ4805ให้ดูครับ ของคุณ จานพัด ครับ :)

ออฟไลน์ TONSON

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ขอแก้ไขครับจำผิดขั้ว เป็น HDMI นะครับ แหะ แหะ :-[

ออฟไลน์ กัมปนาท KK

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,มีตัวโชว์ ราคา 6 หมื่นต้นๆ   4805  ภาพดีอยู่ ;Dแล้วครับท่าน ของมีเครื่องเดียวครับ

ออฟไลน์ กัมปนาท KK

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ติดต่อ ผม 01-6203385   

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review
 http://www.projectorcentral.com/Optoma-H27.htm
H27� � �วันที่� �8/2/2005
http://www.projectorreviews.com/review.asp?reid=46

Optoma H27 DLP projector Overview

It's the middle of summer ('05) and Optoma has just started shipping their new H27 home theater projector, which is intended to replace their highly regarded H31. First and most important possibly, is price. The H27 launched with a $1099 MAP (minimum advertised price), but stree price will be even lower.

It turns out, according to Optoma, that the H31 (already on the market for 9 months as of this writing) has been so successful, that they are continuing to sell it, while bringing in the H27 as well. The H27 offers a number of enhnacements over the H31, and a slightly lower price. Truth is, however, few home theater projectors sell briskly before the word gets out - in the form of reviews, so Optoma's strategy makes sense for the next couple of months. Offering the same brightness as the H31 projector, the H27's performance should ensure its position as not only a truly improved replacement for the H31, but as a strong contender as best home theater projector. Since you are going to ask, overall, I would recommend the H27 over the H31.

The Optoma H27 projector is a widescreen projector, with WVGA resolution. It claims 850 lumens and has two different contrast modes. The standard contrast is 2500:1, however for best performance there is a 4000:1 contrast ratio. This extremely high contrast ratio is the result of Optoma's "AI" circuitry. Like a few other (top rated) projectors (Panasonic PT-AE700u, BenQ PE7700) the H27 projector is using frame by frame image adjustment to enhance picture quality, and Optoma H27 projector owners are benefiting from the results. The H27 uses the 854x480 Darkchip2 DLP processor, which is the heart of this projector's performance.

Note please, I have seen some online databases showing the contrast of the H27 as 2500:1 which means without the "AI" circuitry. This is misleading, as, in the same database, other projectors with AI- including the Panasonic AE700u are always listed with their contrast ratio based on AI turned on. This could be the fault of Optoma's own preliminary data sheets, or confusion. I imagine other projectors that show their contrast ratio with AI on, would have truly dismal contrast specs otherwise.. So the bottom line - the H27 projector behaves most like other projectors claiming 4000:1 contrast ratio.

Overall, the Optoma H27 DLP projector is very impressive, and it shares the same type of image quality - with rich vibrant colors, that has earned the higher resolution Optoma H57 and H78DC3 projectors, their Hot Product Awards.

Before we get into all of that, let's start with the projector's physical layout:

Starting with the basics, the Optoma H27 projector is an all white projector, (which means it will "hide well" ceiling mounted in rooms with whitish ceilings). Overall it has a few sculpted lines, but it is pretty basic looking. The beauty is in the image performance, not the styling.

There is a drop down foot, with the release for it, located bottom center. An Infra-red sensor for the remote is also found on the front. Offset to the left (facing the projector) is the lens, a manual zoom affair, with a zoom ratio of 1.2:1 (20% adjustment range). The lens itself is fairly long throw, so you may find that it will work shelf mounted in the back of the room. If you have a 100" screen, you can place the Optoma H27 projector as close to the screen as 13.6 feet and as far back as 16.4 feet (measured from the front of the lens). To focus the lens, just adjust the lens barrel. To zoom in or zoom out, there is a slide on the top of this projector - just back from the front, above the lens. Should you need to place the projector closer, there is a wide angle lens adapter that shortens the throw distance by 20% (you can place the projector 20% closer).

There is a nicely laid out control panel on the top of the projector, with the arrow keys doing dual role. When you press Menu, the arrow keys control navigation. When menu is not pressed, the up and down arrows control keystone correction (which you want to avoid using if at all possible), the left arrow selects source, and the right one - Auto image mode.

The power cord plugs into the left side (looking from the front) and all the rest of the action is in the back. On the back panel you will find a second infra-red sensor for the remote, and plenty of inputs. From left (looking from the back) to right - there is an RS-232 serial port for controlling the projector from a PC. Moving to the right - three RCA jacks color coded green, blue and red, for component video input, then, an RCA jack (yellow) for composite input, an S-video input, and a multipurpose HD15 (computer) connector, that can handle a second component input (having two component inputs on an entry level projector is pretty rare), as well as a computer input. Lastly is the DVI-I connector which can handle a digital input - DVI, (or HDMI with an adapter -same standard). Normally a DVI-I (as opposed to DVI-D) connector indicates that you can alternately input an analog computer signal. In this case, however the Optoma H27 projector only handles digital. They say they used the DVI-I connector so it could accept either DVI-I or DVI-D cabling. That makes sense.

All in all, the H27 projector has more flexibility in handling inputs than most other entry level home theater projector I can think of. Technically, it can have a computer, a component video and either a second component video, computer or digital source, in addition to the lower performance composite and S-video inputs. Well done! Few projectors selling for under $4000 offer more flexibility, and most offer much less. For those not having a A/V receiver with component video switching, this is a huge plus! Buying switch boxes adds hundreds to your cost, and is basically - inconvenient. As I said, a real advantage for this Optoma projector.

Underneath, the projector relys on a 3 point foot system for balance. As previously mentioned the front foot is adjustable. Of the two rear feet the left one (looking from the back) is screw thread adjustable. This assures you that you can have it stable even on an uneven surface.

It's time to find out about the H27 projector's picture quality.





Review� �4805  ผลิต  may... 2005
http://www.projectorcentral.com/InFocus_Home-ScreenPlay_4805.htm

http://www.projectorreviews.com/review.asp?reid=47

InFocus Screenplay 4805 projector overview

Projector Review: InFocus Screenplay 4805 home theater projector.

InFocus's Screenplay 4805 home theater projector, is almost certainly the most widely owned entry level home theater projector out there. There are two good reasons: First of all, when the InFocus Screenplay 4805 projector was introduced, it certainly was a contender for best home theater in its price range. At the time it offered exceptional image quality, and a faster color filter wheel than most of the competing DLP powered home theater projectors used (the faster wheel reduces the likelyhood of you seeing the "rainbow effect").

The second reason, is that, the InFocus Screenplay 4805 has been on the market a really long time. Launched in April or May of 2004, it is already about 16 months old as of this writing (8/05).

In the world of home theater projectors, that really is a long time. By comparison (although more expensive) BenQ was shipping their PE8700 projector back in April of 2004. BenQ then replaced it with the PE8700+, and this past April replaced the 8700+ with the PE7700! In other words, in the short lifetime of today's home theater projectors (normally less than one year), the Screenplay is ancient. I thought to call it a dinosaur, but that would imply obsolete or extinct, and this InFocus projector is neither. In all fairness, it isn't the oldest model out there, dealers are still selling the discontinued Mitsubishi HC-3 and the old Sanyo Z2 projectors, but these were originally much more expensive, and are even more dated in some ways - but someone has to "move'm out". Another example: Optoma has just started shipping their H27 projector, designed to replace their H31, which only started shipping this past November!

In fact, the InFocus Screenplay 4805 projector is still one of the better low cost projectors out there, with advantages over several competing current model projectors, it just isn't quite up to the best and newest.

The Basics:

The 4805 projector is rated 750 lumens in full power mode, and 600 in economy. Contrast (a critical spec) is rated at 2000:1 which is low by today's standards for DLP home theater projectors. Resolution is WVGA (854x480) which is typical of the entry level DLP projectors. This is the same resolution as today's DVD's produce, and lower than HDTV from your cable or satellite (normally 1920x1080). Note, projectors with true 1920x1080 start at $30,000! To move up to a DLP home theater projector with 1280x720 (WXGA) the most popular resolution, you are looking at $2500 - $15,000.

The InFocus Screenplay 4805 typically sells online, for under $1100 today.

This InFocus projector gets 3000 hours off its lamp in economy mode. Warranty is 2 years. The projector itself is fairly small, and gray in finish. It's not overly stylish, but has some sculpting to its lines (not a rectangular box). As mentioned above, it is DLP based, and uses a 4x speed, six segment color wheel.

There is a very nice control panel on the top, and it does sport a zoom lens with a range of 1.2:1 (20%). The Screenplay has a longer throw lens (the projector sits further from the screen) than most projetors but not all (example - the recently reviewed Optoma H27 sits even sightly further back). The SP4805 projector vents out the front, allowing the projector to be shelf mounted. Since the projector lacks variable lens shift, if shelf mounted you will need to place it with the center of the lens close to the bottom of the screen level, or have it on a shelf but upside down, near the top of the screen surface (same relative height as ceiling mounting. You can actually put it on a shelf more towards even with the center of the screen, but that would force you to use keystone correction, which degrades image quality, and is best avoided.

When it comes to inputs, the InFocus is a typical low cost home theater projector. That is to say, it has the basics. It has their proprietary M1 connector, which supports DVI-I (and also USB)- you can feed it either a digital signal (that is HDCP compliant), or an analog computer signal. In addition there are the 3 color coded RCA jacks for component video, and the lower quality standard S-Video and composite inputs. Strangely the Screenplay 4805 projector actually has a small speaker and 2.5 watt amp. This is rare, and it does indicate that this Screenplay evolved from business projectors. (It's predecessor, the 4800, was identical to one of the pure business InFocus models, except for a minor connector change).

- Next Section >>

คงต้องลองเปรียบเทียบดูครับ

http://www.projectorcentral.com/Knoll_Systems-HD102.htm






« แก้ไขครั้งสุดท้าย: 25 ตุลาคม, 2005, 05:56:54 AM โดย ขุนจิต »
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ออฟไลน์ Aoy

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          รบกวนผู้รู้ช่วยฟันธงให้ด้วย กำลังสนใจอยู่เหมือนกัน

ออฟไลน์ eark

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ไปดูภาพเลยครับ 2ตัวนี้สูสี  h27ได้เปรียบหน่อย ที่มี dvi เหมือนชาวบ้าน หาสายได้ง่ายกว่า dvi -m ของ 4805
เชิดชัย สีหาวงษ์
104/2 ถ.รามอินทรา 40 แยก 15
แขวงนวลจันทร์ เขตบึงกุ่ม
กทม. 10230
โทร 0848 ๓๑ ๘๘๓๑
Line id   s_cherdchai
ออมทรัพย์ กสิกรไทย แฟชั่นไอแลนด์  72028 09280

ออฟไลน์ ขุนจิต

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ราคา h 27 เห็นล่าสุด 6 หมื่นกว่าเองครับ
พิจิต 089-771-8895

ออฟไลน์ TONSON

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โอ้ว! ราคาช่างน่าเย้ายวนใจ :) ไอ้เราว่าจะ up ชุดดูหนังฟังเพลงซะหน่อย รอมานานปลายปีมีแววสดใส ล่าสุด ผบทบ.มีโครงการ up รถยนต์เพิ่มอีกคัน จะถอย  FORTUNER  :'( :'( :'(

ออฟไลน์ Golf

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โอ้ว! ราคาช่างน่าเย้ายวนใจ :) ไอ้เราว่าจะ up ชุดดูหนังฟังเพลงซะหน่อย รอมานานปลายปีมีแววสดใส ล่าสุด ผบทบ.มีโครงการ up รถยนต์เพิ่มอีกคัน จะถอย  FORTUNER  :'( :'( :'(

รอให้พ้นเรื่องปัญหาเบรคก่อนค่อยถอยยังไม่สายนะคับ  :-[
spec เป็นเพียงสิ่งที่สร้างความน่าสนใจให้เราไปลอง ... ไม่ใช่สิ่งที่ทำให้เราต้องตัดสินใจซื้อ

เลือกเครื่องเสียง ... "ลองให้เยอะ ซื้อให้น้อย จ่ายเมื่อมั่นใจ"

Merrex Kable มีจำหน่ายแล้วที่ http://www.hifibug.com/default.php?manufacturers_id=29

===============

http://www.HiFiBug.com

ออฟไลน์ TONSON

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ขอบคุณที่มาเบรกๆเอาไว้ครับ แต่ต้องให้ผบ.เข้ามาอ่านด้วยเจ้าหล่อนละเมอเพ้อพกถึงทุกวัน ;D ;D ;D