Recent content by oqs

Advertisement Category: Want To Sell (WTS) Equipment Type: Lens Equipment Brand: Sigma (CanonMount) Equipment Model: 105mm F2.8 EX Macro Price (S$): 380 Description: Very seldom used. Lens in good condition. Protected by UV filter and stored in dry cabinet. some pics taken with this lens...

Advertisement Category: Want To Sell (WTS) Equipment Type: Lens Equipment Brand: Canon Equipment Model: EF-S 18-55mm f/3.5-5.6 IS Price (S$): 80 Description: Very seldom used. Lens in very good condition. Always kept in dry cabinet. Front and back caps intact. Good as new. Will throw in a UV...

Thanks for taking the trouble! Can see them now. :D Please correct me if i'm wrong but I can see a fair bit of CA in your test pics too. Did you take the crop on the right side of the picture? Your yellow fringing is on the right and mine on the left. This might actually be the behaviour of...

twitism, thanks for your help. But I'm having problems seeing the images. Is there a problem with the linking?

I have retook these test pictures after removing the filters from both lenses and upping exposure to get a brighter picture. Please see below for the test images at 100% crop. 17-55mm @ 55mm f2.8 17-55mm @ 55mm f5.6 18-55mm @ 55mm f5.6 It seems to me that the CA is affecting the...

Thanks. Will try again tonight without the filter and properly expose the frame. Anyway I got a feeling the frame is actually properly exposed but vignetting caused the darkness because this is cropped from the edge of the frame.

Thanks a lot, twitism! Really really appreciate it.. Look forward to seeing your test pics if you do have the time to take today. :)

haha. thanks. But I will definitely not try that. Blended glass probably don't taste good. :) Still looking for sample pictures by anyone owning a sharp/good copy.. and all comments still welcomed.

very 'deep' leh. Got simpler version? haha :D

Oh yeah, forgot the setup. Camera used was 40D mounted on 190XPROB tripod. B+W UV filter on the 17-55mm and Tokina UV filter on the 18-55mm. Subject was about 40cm away from the mount, pasted flat on a wall. Will try to do another series with +1 to exposure. Thanks for replying. :)

No reply guys and girls?? Am I missing out any information here or are the questions I'm asking too ridiculous? :D Do let me know. Thanks!

I bought a EF-S 17-55mm from CP-M a few days ago. While testing it at home, I took some text near to the lens' minimum focusing distance (still able to AF confirm) and found that there is big amount of chromatic aberration (CA) at the edges of the image (yellow fringes on the left side of a...

Advertisement Category: Want To Sell (WTS) Equipment Type: Lens Equipment Brand: Sigma (CanonMount) Equipment Model: 105mm F2.8 EX 1:1 MACRO (non-DG) Price (S$): 300 Description: Lens is in perfect condition. No scratches, user marks or whatsoever. A high-quality Tiffen UV filter is included...

Want to share my sister-in-law's maltese, Niki. Hope you like her as much as I do. :)

buttie! BBB! :bsmilie: :embrass: