Lan

Lan

Lives in United Kingdom South East, United Kingdom
Works as a IT
Joined on Jul 12, 2001
About me:

Hobbies:
Photography
Computers
Reading SF/Fantasy
Travel

Comments

Total: 214, showing: 1 – 20
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On Canon EOS Rebel T6s Review preview (432 comments in total)

So, the question is - does the new HDR video mode use the Dual ISO trick from Magic Lantern? That tends to be moiré prone...

I guess the noise levels in the highlights and shadows would tell you what it's doing.

Direct link | Posted on Jun 15, 2015 at 23:24 UTC as 61st comment
On Nikon 1 J5 and Samsung NX500 added to studio test scene article (131 comments in total)
In reply to:

win39: Kind of disappointing. Look at the green foliage. The Nikon looks like green fog. Not sure what is going on there. Even at base ISO. I suspect the Sony looks superior because of higher default sharpening on the JPEG. Seem like dpreview could devise a sharpening target so that all their test cameras could be adjusted to the same actual sharpening before a comparison is made.

Compare the same sample but in RAW; and you can see that it's definitely a JPEG sharpening/NR issue. There's just a lot more fine detail in the RAW, of course there's more noise too, but that's not as objectionable to me...

Direct link | Posted on Jun 8, 2015 at 23:45 UTC

From the website:
"each entrant grants to Marwell Wildlife a non-exclusive irrevocable license to reproduce, publish and communicate to the public by any means and exhibit their awarded image(s) and copies of their awarded image(s) in all media throughout the world in relation to the competition and the exhibition including but not limited to all use in the context of:
- Judging the competition.
- Display in the exhibition.
- Inclusion in Marwell Wildlife magazines and/or similar.
- Inclusion within Marwell Wildlife websites and social media channels.
- Inclusion in promotional, press and marketing materials associated with the competition and/or Marwell Wildlife.
- Inclusion in any merchandising associated with the competition and/or Marwell Wildlife.
non-refundable entry fee of £10 is payable for adults by credit or debit card and up to 5 images are permitted per competition entry."

Direct link | Posted on Jun 5, 2015 at 20:28 UTC as 4th comment | 1 reply
On Panasonic Lumix DMC-CM1 camera review post (236 comments in total)
In reply to:

nandbytes: As for image quality comparison I'd liked a more apples vs. apples comparison with other 1" sensor cameras. Its better than other smartphones with smaller sensors (duh! big surprise!)

I'm not sure that's fair though; the fact is - it is a smartphone. Hardly fair to compare it against much larger and in many cases more expensive devices.

That said, Spencer's done just that in his link above ;)

Direct link | Posted on May 27, 2015 at 23:08 UTC
On P1000317 photo in dpreview review samples's photo gallery (1 comment in total)

Shaken, probably because you were shooting at f18. Why did you take it at f18?

I can understand you were after motion blur with the panning shots, but that doesn't work when they're coming towards you like this.

Direct link | Posted on May 27, 2015 at 18:33 UTC as 1st comment
On 017A0610_ACR-CONVERSION_ISO100 photo in dpreview review samples's photo gallery (1 comment in total)

Much wows!

Direct link | Posted on May 13, 2015 at 21:30 UTC as 1st comment

Very nice RAW results; disappointing JPEGs.

Assuming these are JPEGs taken with the camera defaults; the JPEG engine seems to apply too much NR at base ISO, and the sharpening appears to be excessively wide radius and clumsily applied. Standard JPEGs in other words ;)

Direct link | Posted on Apr 24, 2015 at 22:38 UTC as 27th comment
In reply to:

Lan: Adobe, please add support for Magic Lantern's Dual ISO mode.

Except that they're not the same thing at all.

Dual ISO changes the sensitivity of the sensor on alternating scanlines. So for example the odd numbered lines are exposed at ISO 100, whilst the even numbered scanlines are exposed at ISO 1600. Net result; significantly improved DR compared to a standard Canon sensor.

Those files need special processing, which is something those controls don't address at all.

Yes, ISO invariance would be nice, but we don't have it yet, so in the meantime I'll make do with dual ISO ;)

Direct link | Posted on Apr 23, 2015 at 19:00 UTC

Adobe, please add support for Magic Lantern's Dual ISO mode.

Direct link | Posted on Apr 22, 2015 at 21:37 UTC as 12th comment | 3 replies

If Adobe are listening; a feature I would really like is native support for Magic Lantern's "Dual ISO" RAW files please. Thank you :)

Direct link | Posted on Apr 21, 2015 at 20:11 UTC as 107th comment
On Pentax K-S2 added to studio scene article (73 comments in total)
In reply to:

Mike FL: The zoom seems has BAD QC issue as always:

http://www.amazon.com/Pentax-Series-16-50mm-Digital-Cameras/product-reviews/B000NO5QV6/ref=cm_cr_dp_qt_hist_one?ie=UTF8&filterBy=addOneStar&showViewpoints=0

dagobah: It doesn't appear to be distortion correction; or if it is, it's being applied to both images - I just downloaded both the native SooC JPEG and the ACR JPEG, and the distortion is the same in both.

The ACR JPEG shows jaggies that are not in the SooC JPEG. Also the colour resolution appears better in the ACR JPEG. It looks like there's some minor NR being applied to the SooC JPEG.

I also prefer the colours from the ACR conversion, as the edges are better defined. Which I guess clinches it; it's NR!

Direct link | Posted on Apr 14, 2015 at 22:57 UTC
On Pentax K-S2 added to studio scene article (73 comments in total)
In reply to:

Mike FL: The zoom seems has BAD QC issue as always:

http://www.amazon.com/Pentax-Series-16-50mm-Digital-Cameras/product-reviews/B000NO5QV6/ref=cm_cr_dp_qt_hist_one?ie=UTF8&filterBy=addOneStar&showViewpoints=0

naththo: I had just come to the same conclusion myself; in JPEG the concentric rings at the corners are noticably softer than the competition; a disadvantage that vanishes in the RAW image.

I was initially wondering whether the ISO100 JPEG sample was slightly shaken, but it's the same at ISO200 - JPEG soft, RAW sharp.

Direct link | Posted on Apr 14, 2015 at 20:17 UTC
On Red introduces 'Weapon' camera with 8K sensor option article (104 comments in total)
In reply to:

Bernard Carns: Was I reading the specs right?
8k is somewhere near 35mp?
The Blackmagic URSA mini 4.6K is almost 12MP (pretty close to the A7s) and it can record 4.6 raw internally and has a global shutter, 15 stops DR and takes Canon lenses....hmmm.
Add autofocus and flash.
Who needs an slr anymore?

Perhaps someone who wants to spend less than $20,000 on a camera? You can buy a Sony a7R for a tenth of that price...

Direct link | Posted on Apr 13, 2015 at 21:28 UTC
On ISO 100-SAM_1542 photo in dpreview review samples's photo gallery (1 comment in total)

ISO 100-SAM_1542 appears to be noticeably less sharp on the left hand side; any idea whether the lens is slightly decentered or if the camera twisted during the shot?

From the way the distortion appears to radiate from the centre, I'm guessing it's decentered...

I guess those 28MP APS-C pixels are demanding on the glass you put in front of them!

Direct link | Posted on Apr 10, 2015 at 23:12 UTC as 1st comment
On Summit meeting in the Beautiful Ties challenge (4 comments in total)
In reply to:

Lan: Lovely composition and a well deserved 1st place; those are some very nice ties.

As a matter of interest, who makes the tie at the top of your photo?

Thank you for the info!

I do love ties... and I love photography. This shot makes me wonder why I haven't taken any pictures of them myself. Maybe this will be the inspiration :)

Direct link | Posted on Apr 10, 2015 at 18:09 UTC
On Summit meeting in the Beautiful Ties challenge (4 comments in total)

Lovely composition and a well deserved 1st place; those are some very nice ties.

As a matter of interest, who makes the tie at the top of your photo?

Direct link | Posted on Apr 8, 2015 at 21:21 UTC as 2nd comment | 2 replies

If they'd made it native 2:1 that would have been interesting...

Direct link | Posted on Apr 3, 2015 at 23:11 UTC as 16th comment
On Sony Alpha a7 II Review preview (823 comments in total)

No lossless RAW? No sale!

Direct link | Posted on Mar 31, 2015 at 19:51 UTC as 188th comment | 2 replies
In reply to:

laueddy: Now, I want a 14mm for my 645Z

That sounds like a fair exchange ;)

Direct link | Posted on Mar 24, 2015 at 00:38 UTC

I'm worried; there are more than five consecutive positive replies from commenters on DPReview below. Isn't that a sign of the apocalypse?

Oh, right, I get it - my router's been hacked, and someone's playing a practical joke on me! Ha ha, very funny!

They are really good photos though :)

Direct link | Posted on Mar 9, 2015 at 01:13 UTC as 17th comment | 2 replies
Total: 214, showing: 1 – 20
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