hv u tried mirror lock up for cleaning? coz i had the same thng recently...and mirror up and blw it away...and its gone..

I also have this. Mine is at the top left, whatever I do, it just won't go off, cotton bud clean the sensor, mirror, whatever, it's still there. Definitely not the lens as the dot is there when I look through the viewfinder without a lens.

definitely dust/oil/ whatever. . .
pay someone capable to clean or mirror up and then lay ur tongue there and lick it and wipe it with ur t-shirt

Under warranty should be cheaper, I think RM20?

last time i clean my D7000 sensor only RM20 after shown warranty card..without warranty card is RM60 

nikon 85mm got larger working distance, but its DX only lens.
both are just as sharp.
so its your choice.

where got hard to decide?
wallet already says tamron is better choice.

but if u really think ur going to stick with DX lenses, u should also look at the tamron 60mm f/2.0.
basically same working distance as the 90mm, since the 60mm doesnt extend.
and it can obviously also be used as an alternative to a 50mm 1.8.

What do u plan to use it for? I hv tamron sp af 90 on my d3100. It is very sharp for macro but the AF motor inside is not as fast as those prime lens or any nikkor lenses la. You can feel it is a bit slower.

I dunno much about the 85mm micro though ..would love to test it one day... or I might as well fund for upgrade to 105mm micro in the future ..hehehe. (evil laugh)

working distance is from the front of the lens to subject at 1:1.
iirc both tamron 60mm and 90mm are about 10cm, its cos the 90mm extends out so robbing some distance.

the nikon 85mm is about 14-15cm as it doesnt extend.

from what i've heard, if your  body has a motor, ie. D50, D90 and above, then the sp90 without motor will focus faster.
other than that, theres no other difference.
i think the sp90 available here all got no aperture ring, and only really useful if u got film bodies.

probably urs wasnt serious, so they cleaned it.
mine after few thousand shots of high fps, it appeared.
nikon replaced my shutter unit when i brought it to them after 10k sc...so far no issues already.

u go back to the pj one, talk to decward.

How much do they charge? Mine warranty lapsed oredi.

Anyway, I still have the receipt of the last cleaning job. Can I show them the receipt and say I should get this done for free since it's Nikon's fault?

I would get the 77mm then if need only get step up ring.

77mm and the step up ring...

that way both your lens can use it right? and most pro grade lens you upgrade to ultimately uses a 77mm... normally...

not sure in what mm only not exceed more than 90 degree Field of View.
Ring CPL effect only cover up to 90 degree of view

this happens in ultra wide focal length mostly

http://www.pentaxforums.com/forums/pentax-...cpl-filter.html

That CPL cost a bomb 

is this a good deal?
http://shashinki.com/shop/nikon-d5100-digi....html#!tab3

or d7000 with kit lens?

Well, let me chip in my view,

I started off with D5100 with kit lens, kit lens great, but the moment i try 50mm 1.8g, i get hooked with the 1.8 and bokeh, so much so i naively believe that 50mm will be sufficient for everything, which prompt me to sold off my kit lens 18-55.

Then one fine day i go company outing, im being ask by my boss to take group photo because i seems to be the one with DSLR. With only 50mm, i blush so hard and in the end, i use my fren Nikon Coolpix to capture the photo. From there onwards i understand, 50mm by itself, cannot fit to every situation.

I bought 17-55 2.8 soon afterwards.

Then im being ask by my senior to help cover one of the company sponsor sport event, i realize i need a longer lens, so that i can shoot them from far.

Then i bought 105 f2.8 after the event.

Then with anticipation for FX camera, i sold off my 17-55 and bought 16-35mm F4 instead.

Then i complaint my DSLR too heavy for all occasion, feel like wanting something lighter so that i can carry everyday and for street photography, I bought Fuji X100 soon after that.

The Moral of the story is: Photography is a never ending, non satisfy, egolistic hobby, understand what you want, get what you need, and spend what you can.

Lolol. So I'm still.confused
Buy d5100 together with what? 50mm or 35mm? and should the 18-55 kits lens be taken?

owh~ cuz i was reading somewhere about the sigma 10-20mm f/4-5.6 and some reviews say the lens is not overly sharp.. of course not expecting stellar performance, but they say the DOF is curved instead of being straight..

so they say even though the objects lies in the parallel to the sensor.. the corner objects may not be in focus even though the centre object is in focus.. is this claim true? is it a deal-breaker in actual shooting? or am i just looking at very trivial problems? i actually interested in the tokina 11-16.. but my camera have no motor to test the AF.. otherwise need borrow people's camera to test during COD