[hoyukman]

如上

[AFA]

DSLR expensive due to
1. SLR lens mount (need to suit the CCD size with the SLR lens)
2. Larger CMOS/CCD (APS size for ~ $1xxxx, 35mm film size for $5xxxx)
3. Larger LCD (mostly)
4. Better IC (so u can see less noise there, and have a faster speed)
5. Actually, for a good SLR, the body also expensive la.

You can see, for those more function and better quality prosumer DC, such as F717, D7Hi, CP5700, all about $8000 la. DSLR just $12000 now.

[hoyukman]

what is the advantage of Larger CMOS/CCD ???

what is SLR lens mount ?

[hoyukman]

如上

[trent]

what is the advantage of Larger CMOS/CCD ???
A larger sensor gives much better image quality, there is almost no purple fringing.

what is SLR lens mount ?
The ring to mount lens on SLR, enables u to exchange different lens.

[hoyukman]

thank you
what else?

[AFA]

say easier.
larger CMOS / CCD (the things to capture picture), compare with small one, u think if u need to resize to larger photo (like 4R larger than the size of CCD), u think use larger one to resize(say 200%) better or small one to resize(say 400%) better?

[hoyukman]

thank you AFA and trent

[hoyukman]

買鏡要預幾多錢???

[AFA]

Need wide?
Not? Normally, my friends bought these lens
1. EF 24-85 f/3.5-4.5 USM ~ $3000 (become 38.4 - 136mm)
2. EF 28-200 f/3.5-5.6 USM ~ $2000 (become 44.8 - 320mm) (poorer quality)
Yes?
1. EF 17-40 L f/4 USM ~ $5500 (become 27.2 - 64mm)
Need larger aperature
1. EF 50mm f/1.8 ~ $580 (become 80mm)
2. EF 85mm f/1.8 USM ~ $2200 (become 136mm)
Need tele?
1. EF 70-200mm L f/4 USM ~ $4500 (become 112 - 320mm)

[Jacky仔]

A larger sensor gives much better image quality, there is almost no purple fringing.<<<<<<<<<<<<<

非也非也, 紫邊呢樣野係睇鏡頭優劣的, ^^

[hoyukman]

2. EF 28-200 f/3.5-5.6 USM ~ $2000 (become 44.8 - 320mm)

sorry, i am a begginer

i want to know what is the EF , USM and (become 44.8-320mm??

[hkhei]

>>A larger sensor gives much better image quality, there is almost no >>purple fringing.<<<<<<<<<<<<<

>>非也非也, 紫邊呢樣野係睇鏡頭優劣的, ^^

對，不過紫邊卻係因為ccd/cmos 而形成~
film唔會有紫邊:pp

[hkhei]

>>2. EF 28-200 f/3.5-5.6 USM ~ $2000 (become 44.8 - 320mm)

>>sorry, i am a begginer

>>i want to know what is the EF , USM and (become 44.8-320mm?

好少人會建議呢支鏡
要買大zoom都買副廠

btw，你用落dslr都好，支鏡o既實際焦距係唔會變
變o既係field of view(變到好似44.8-320mm咁)

[lph]

Don't but the EF 28-200mm Canon lenes, this is one of the Canon lenes with slow autofocus speed and inferior quality ( compare with other Canons).