NVidia + Sony Alpha = wow

what can they produce?

any of u use cyberclean to clean your gear? safe?

3D photography.... change all ur image straight to 3D Art. lol.

next time u hav to wear 3D glasses to shot. siao liau

we can have clear crisp LCD interface powered by nvidia.

i use cyberclean...quite ok for now, so far no problems lo.....................but if u like the lemon smell lo

u use the yellow green 1 right? cuz i heard blue colour de is more wet knot use on electronics devices

Wow.. Thanks.. tat explain really quite a lot. I really din know there r difference between these sensors... all i thought is apsc n fullframe..sensor n they apply for all brands. Now, I really donno how to related the focal length of what i hv with A700 system with the olympus 4 third system...damn.. im just so bad with technical number things.

Mind telling me 14-35mm F2.0 = 14-35mm on A700?

Need a glass to view the photos in 3d? Eventhough im doing 3D visuals, but Im not really a fans of 3D movies or so (with 3d glasses).. I think they r baddd.. especially in cinema one...saw the Sony 3D TV.. is a lot better but still doesnt fancy it.. rather watching it conventional way

clivengu : If 14-35mm F2.0 can be mounted on a700, it will be 21-52.5 f2. But Olympus's crop factor is 2x so it will be 28-70 f2.0 (:

sony apsc's hav e 1.5x crop factor and canon apsc has 1.6x crop factor.

correct me if im wrong.

tho im not sure how to calculate all these things. haha. i just know this from reading.

This post has been edited by Mikeshashimi: May 31 2010, 07:10 PM

mike, correct

Hm.. okey.. wan give another example. correct me if im wrong.

28-70mm(the zuiko lens) on Olympus E3/ Ep-1 =same as= 28-70mm on A700... or similar

i think will still be different coz of the crop factor.

put it this way, all those numbers (eg.50mm) written on the lens, those are referring to the angle of view on a full frame.

then whichever sensor size you put that lens on (assuming all lenses can be attached to any body at all), multiply that mm with the crop factor (eg. 1.5x, 2.0x etc.) then you will get the equivalent view angle which you can get on a full frame sensor/film.

so in your example above, putting a lens which is written 28-70mm on the respective cameras, u will get equivalent of:

A900 = 28-70mm
A700 = 42-105mm (equivalent of a FF)
four thirds = 56-140mm (equivalent of a FF)

This post has been edited by lwliam: May 31 2010, 07:25 PM

owh ceh!

so a 50mm on apsc is actually 75mm?

yes, meaning if u use 50mm on A700, you will actually need to use a 75mm on an A900 to get the same angle of view. (note: NOT picture outcome)

and due to the change in focal length, the DoF will be different. this is one of the difference between APS-C and FF, which will cause a shallower DoF.

This post has been edited by lwliam: May 31 2010, 07:31 PM

i was thinking the opposite.

that is a very common misconception. due to the fact that most of us use APS-C sensors, we're used to saying which focal length corresponds to which field of view. this is because many ppl will disregard the word "35mm equivalent". those numbers are based on fullframe field of views, the 35mm standard reference is because the original fullframe is film, which is 35mm wide (36mm x 24mm to be precise).

what we are seeing in APS-C are actually a cropped out portion from the full frame. and hence the image that you shared earlier on.

This post has been edited by lwliam: May 31 2010, 07:49 PM

Wow. good explaination.. but my head still spinning... trying to make sense of the the figures. cause i was using A700 as a comparison.. so now i hv to think like this ... A700----> fullframe----> final image in 4/3 olympus...

Take example 50mm Lens on A700 (i wan this Angle of view in end photos), in A900 i will need a 50mmx 1.5 = 75mm lens to produce that kind of angle. And for Olympus system to have a photo of angle like 50mm on A700 = 75mm/2 = 37.5mm Olympus lens on olympus body.

Sorry im making it more complicated.....i hope this round im right...

To Summarize... what ever focal length shown in the olympus website,when use with olympus system, will be exactly the same angle of view of a Non-olympus lens on any fullframe body.
http://asia.olympus-imaging.com/products/dslr/lenses/


* ZUIKO DIGITAL ED 50mm F2.0 Macro on E-3, will have same ANGLE OF VIEW with a Sony 50mmF1.4 on A900? (CORRECT or WRONG?)





This post has been edited by clivengu: May 31 2010, 08:14 PM