split-prism rangefinder is something in the past. Kinda useless unless u shoot everything in the middle and also will only work if you have the time to do the focusing before your subject run/fly away

Vincent Pang, on the contrary, they are still used in all modern digital SLRs - phase-detect AF points are all split prism rangefinders. Cross-type AF points are just 2 sets of split prism rangefinders overlaid on each other. So if you understand how a split prism rangefinder works, you will understand what they are talking about in more depth.

Also, you can focus using the darkened ground glass on the outside of the split-prism rangefinder of a manual-focus screen. It will show correct depth of field for lenses brighter than F2.8 (as opposed to shooting at F2.0, and finding your DOF to be less than what you see in the viewfinder.)

Contrast-detect AF, like that on the Panasonic G1 and Live View systems of Canon/Nikon/Olympus, do not use split prism rangefinders. But they certainly are not faster than the phase-detect AF system that uses split prism rangefinders!

I do wonder how people with proper rangefinders (Leica M8, etc) focus off-center. There's no ground glass on that one...

This post has been edited by albnok: May 4 2009, 11:53 PM

finish reading page 1..think i need some times to digest..haha

Any of you guys using a bag brand called Kani? Its same design as Bagman.

So the price is justify for that... or or it should around rm 200?

neway my aim is sal18250mm easy to go travel...

OK, photo SPAM 3 pictures lah:

Shot these girls at the local Tanjung Aru beach last Sunday. Gorgeous sunset and of course one of my favourite shooting style, sunset portraiture!

#1 Model: Pearl Dianne


#2 Model: Pearl Dianne


#3 Model: Kai Shin


C&C welcomed!

personally...i think the only *cheaper* add-on lens that worth the $ is raynox macro lens...

but to be frank i nv really use alot of 'em b4...so it wouldnt b fair for me to bad mouth about those add-on stuff....


my point of view is always...if u want to shoot macro..get a true macro lens..if u wan to shoot wide angle..get a wide angle lens.....the converter might satisfy u for awhile..but eventually u'll move to the 'true' lens for the quality...so y waste the $ at the first place?



p/s:to me..800buck is too exp.. =)

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Added on May 5, 2009, 12:38 amits the usual "kysham" style....and as usual..its nice

This post has been edited by achew: May 5 2009, 12:38 AM

advice noted.. since a200 is my first dslr i will try to lenjan the kit lens to da max and up my knowledge.
later on find more lens.. now trying to get bokeh with kit 1810 huhuhuhuhuh ... (boleh kew?)

1870 u mean

well..not say cannot..just that its a lil bit hard and the bokeh of cos cant b compared with the prime lenses....(and thats the reason y i got my 50mm less than a week after i bought my a300..lol)

try zoom to the max..get nearer to ur subject....and use the smallest F number possible...

This post has been edited by achew: May 5 2009, 12:48 AM

i don't think so any of them at dyxum are talking about live view. Btw, wat live view system is the A900 using?

you sure ur phase detect AF system which uses split prism are faster? all the dude in dyxum seems to agree that D300/D700 has fastest AF. Nikon not using split prism right? I'm not referring to live view here.

This post has been edited by Vincent Pang: May 5 2009, 01:07 AM

cos that;s the only lens left behind. the rest was with me. i forgotten abt it

Vincent Pang, read it again, they say the A900 has faster AF, but the D300 tracks better and focuses off-center than both Sony and Canon. The D300 had more trouble in low light due to it not having a F2.8-optimized sensor and it may not be as accurate.

Phase-detect AF = (electronic) split prism rangefinder

Nikon is using split prism rangefinders in their 51 AF point phase-detect system. They just use a lot more of those, that's all.


This is a disassembled phase-detect AF unit from a Minolta 9xi. It had 4 AF sensors but you see 8 holes there right? Do you understand?

oppss typo error... yup 1870 .. sry...

hehe.. nevermind.. im still learning..

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Added on May 5, 2009, 1:49 ami've pp the skin of the groom in my previous pic post....
PP :


Here is the ORIGINAL pic.. so u guys can play around


This post has been edited by alpha_company: May 5 2009, 02:00 AM

ok..heres another quick edit from me..things i did...fake bokeh(might b a lil bit too aggressive..but lazy to change =p )..sharpen some details....smoothen the face...make the skin tone btwn both of them more balanced...






p/s: the more i see..the more i don like the fake bokeh..lol...but well...just for fun..so lazy to reduce it =p

This post has been edited by achew: May 5 2009, 02:28 AM

from ur exiff, u use saturation +2..my personal advise, letthe saturation and contrast 0 value..

it helps to prevent skin tone problem..

waah achew.. the skin tone of the groom u edit how? step by step plzz.. fake bokeh how?

This post has been edited by alpha_company: May 5 2009, 02:38 AM

errr...actually there is no "correct" way of using photoshop la...as long as u understand the functions..u no need to follow the steps...if not..follow blindly wont bring u far..

ok..anyway..since guy n the gal skin tone is not on the same level..all i did was change the exposure + gamma + brightness to make the gal skin tone until i feel comfortable...and den another layer of exp + gamma for the guy..and den mask it using the gradient tool....

bokeh wise...its just "blur"..nothing great..lol


edit: oh ya..i desaturate ur photo a lil bit too...

This post has been edited by achew: May 5 2009, 02:47 AM

very nice ... I like the hazy effect.. give the photo a dreamy kinda atmosphere...

Here's mine... (although personally, I like achew's better). I went for a more natural color (bcoz kena komen before this that my skin tone was too warm.. hehe)

BEFORE


AFTER


This post has been edited by Banzai_san: May 5 2009, 03:19 AM

Edited, already has the answer.

This post has been edited by Seng_Kiat: May 5 2009, 03:46 AM