one is saying crop in sensor and another one saying about crop in lens perspective.

Picture 3 is incorrect. You will still have crop in a DX lens on a DX sensor. Only the centre part of the DX lens is used. The sides are not.

In retrospect, Picture 3 will be correct if it was an FX sensor. It utilises fully the glass area of the DX. That is why you get vignetting when using DX lens on FX sensor because the sides of the DX glass remains unusable.

you guys used/seen a projector before i assume.

the sensor is like the white screen on the wall.
the image of the projector is being created by the lens in the projector.

if you have a smaller white screen (DX sensor), what will happen?
if you have a bigger white screen (FX sensor), what will happen?

do bare in mind that the projector was projecting the same image using the same lens at the same focal length. hope this helps.

see http://www.mylensdb.com/guide-field-of-vie...tor-visualizer/

Focus Test with my D7000 :



result : Front focus problem ?

test few times and results is the same.. anyone having focus problem with Nikon D7000 ?
tested with AF-S 50mm f/1.8G

Aiyah... Good post but must you use a Canon example in a Nikon thread?

Nikon has a lens simulator and you can try any type of lens on DX or FX body and it'll give real time image rendition. You have 3 images that you can choose as your test example.

http://imaging.nikon.com/lineup/lens/simulator/index.htm

Before jumping onto conclusions, can you point out where did the camera focus on? What focus was used? AF-S, AF-C or AF-A? You can open up the pic in View NX2 and locate where the camera finally decided to focus on.

Does not matter right as long as they are all based on the same principles. It's all cameras!

Very good link you got there! Thanks also!

focused on the middle broad black line using AF-S, single point middle(center of 9 points).
heard a lot of people having back focus issues.. but this one is having front focus.. maybe because of the lens itself (50mm 1.8G), should try with kit lens too.

My 2 cents, your paper seems 'senget'?

Definitely it will be 'front focus' IMO. Cause it is tilted and the 10mm is closer to the line u focus in the same plane.

thank you for your feedback.. will post the result here again soon..

To be frank I had this issue before. Just make sure the line is aligned to your grid lines. Turn it on, then ensure no tilt.. else it would mislead the result.

Where do you get that focus chart? Can't seem to get the version that you're using with the square alignment line?

And supposedly, how to align with the square alignment line?

at least d bold black line should be horizontal straight from wat we can see...

anyone can tell me which shop can offer best price for D7000 kits? thanks.

one forumer here at lyn selling RM3780 for D7000 + kitlens

Help me decide. 50mm or 35mm ?
Dining purpose use.

35mm

Since you're on FF, 50 or better still 85G?

I believe KTCY is still on D90. So the 35mm (one.point.four I presume) would be nice. 50mm would be too tight.

Where thier shop located?