Mark K

Mark K

Lives in China Hong Kong, China
Joined on Aug 23, 2001

Comments

Total: 344, showing: 1 – 20
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In reply to:

EXkurogane: Any lens can be the the world's smallest when you make the maximum aperture so tiny, combined with no autofocus.

Maybe someone should make the world's smallest ultra wide angle lens like a f22 14mm. It will sell because so many people can't lift nowadays.

Almost bought Sigma 180/2.8 macro...But it's weight and size drove me at

Link | Posted on Nov 30, 2021 at 04:31 UTC
In reply to:

AdamT: the weird thing is that other reviewers have found that the cheaper Contemporary version of the lens was just as sharp and actually focusses QUiCKER !! . it`s also a lot cheaper and smaller and slightly faster aperture over a range of FLs ..

Here`s a good real world review/discussion on the pair, centered on the Contemporary

https://www.deepgreenphotography.com/blogarchive/2016/5/fieldreview-sigma-150-600-mm

I am a bit surprise too. Though the most of my birding buddies using Sigma prefer the C version but..I found my S version is sharper.

Link | Posted on Oct 21, 2021 at 05:27 UTC
In reply to:

Kharan: I couldn't care less about this Sigma, as it's not available for Nikon Z, and even if it were I wouldn't get it; but, let me thank you from the bottom of my heart for including bird photos in what's evidently a birding lens! I think Jordan especially is skilled in this area, and I think it was a great idea to hand him a sample.

Please continue to do so, DPR staff. I know I've badgered you people in the past about this matter, and I'm really happy to see it addressed.

I have been thinking adapting F mount Sigma lenses to Z mount camera. If this does not work well, then fetching a D850 is an alternative way.

Link | Posted on Oct 21, 2021 at 05:26 UTC

Further test for the 35-135 https://www.youtube.com/watch?v=9mGSpku0u0Y

Link | Posted on Oct 3, 2021 at 13:41 UTC as 2nd comment
In reply to:

IvanMu: Im architecture photographer and Sony shooter. This weekend i wanna buy Nikon ZII with lenses because im so exhausted with Sony's colour science. But im still in big hesitation about Z future in case of denied third party manufacturers to the bayonet (((

That is quite extraordinary because E mount is supposed to be an open mount and also Sony owns part of Tamron. However, the AF inconsistency is somewhat disturbing. Nevertheless I am saving up for this fantastic 25-135. Local Tamron is allowing preordering of these three new lenses from 28th Oct.

Link | Posted on Oct 3, 2021 at 05:54 UTC
In reply to:

AdamT: the weird thing is that other reviewers have found that the cheaper Contemporary version of the lens was just as sharp and actually focusses QUiCKER !! . it`s also a lot cheaper and smaller and slightly faster aperture over a range of FLs ..

Here`s a good real world review/discussion on the pair, centered on the Contemporary

https://www.deepgreenphotography.com/blogarchive/2016/5/fieldreview-sigma-150-600-mm

Well, almost true.
Bought 150-600s and 150-600c at the same time. The contemporary version is only a hair less sharp but it is much lighter.

Link | Posted on Oct 3, 2021 at 02:30 UTC
In reply to:

Kharan: I couldn't care less about this Sigma, as it's not available for Nikon Z, and even if it were I wouldn't get it; but, let me thank you from the bottom of my heart for including bird photos in what's evidently a birding lens! I think Jordan especially is skilled in this area, and I think it was a great idea to hand him a sample.

Please continue to do so, DPR staff. I know I've badgered you people in the past about this matter, and I'm really happy to see it addressed.

Any idea how good autofocus work using adapted F mount Sigma 150-600s?

Link | Posted on Oct 3, 2021 at 02:28 UTC
In reply to:

Kharan: I couldn't care less about this Sigma, as it's not available for Nikon Z, and even if it were I wouldn't get it; but, let me thank you from the bottom of my heart for including bird photos in what's evidently a birding lens! I think Jordan especially is skilled in this area, and I think it was a great idea to hand him a sample.

Please continue to do so, DPR staff. I know I've badgered you people in the past about this matter, and I'm really happy to see it addressed.

Any idea how good autofocus work using adapted F mount Sigma 150-600s?

Link | Posted on Oct 3, 2021 at 00:59 UTC
In reply to:

espederle: There is one very big advantage of the Sony 200-600mm compared to the Sigma and Tamron: It does not change its length when changing the focal length as it is an inner zoom construction.
This is the reason of it's 5cm plus in length. But compared to the Sigma on the long end it is much shorter. And if you shoot with such a super tele, you use it more often near 600mm than 200mm.
Additionally as you wrote in the article: "The 150-600mm extends significantly in length as you zoom in, shifting balance forwards noticeably in the process."
There is no balance shifting with the Sony, which makes it much more better to handle. I can carry around this 2.1kg monster rather easily, lift it up immediately, zoom in as necessary and shoot. No length and balance changes.

Yes, the protruding front elements affect the whole balance greatly

Link | Posted on Oct 3, 2021 at 00:58 UTC
In reply to:

Strangefinder: New 2021 design.

Some commentators have confused this with the two earlier SLR versions (with "HSM" designation, rather than "DN" for the 2021 mirrourless version of this review).

This is a completely new design with the robust SPORTS build, unrelated to the others. (The old Sports HSM or Contemporary HSM versions can be adapted via the correct MC-21, though, if you find a bargain that suits you.)

I believe so. The sharpness at 150mm has improved a lot.

Link | Posted on Oct 3, 2021 at 00:57 UTC
In reply to:

Strangefinder: New 2021 design.

Some commentators have confused this with the two earlier SLR versions (with "HSM" designation, rather than "DN" for the 2021 mirrourless version of this review).

This is a completely new design with the robust SPORTS build, unrelated to the others. (The old Sports HSM or Contemporary HSM versions can be adapted via the correct MC-21, though, if you find a bargain that suits you.)

I have two previous models, and the 60-600 was bought one day ahead of Sony's 200-600. Sony lens is on sale now and it should be the lens of choice

Link | Posted on Oct 3, 2021 at 00:54 UTC
In reply to:

Steppenw0lf: Would it work with the Sony extenders ? There are no protruding elements, so it should be possible. Or is it turned off/forbidden in the camera ?

I tried to a Sigma 1401 extender to my 600 prime and the TC simply burn the lens. I was lucky enough to my lens repaired

Link | Posted on Oct 3, 2021 at 00:52 UTC

First review
https://www.youtube.com/watch?v=Whyhnhz0S0A

Link | Posted on Oct 2, 2021 at 18:07 UTC as 5th comment
In reply to:

Photomonkey: As a happy Canon R5 user with a fair amount of RF glass, I have to say that the argument for owning a Sony body gets more compelling with each new lens everybody seems to introduce.
Third party lens offerings for Canon are paltry and are scarcely the stuff to intrigue people looking for useful tools such as this one.

That is not entirely good thing.
I have compared using Sigma lenses and native Sony lenses, the AF speed and accuracy is indeed different.
What I want to say is, if I am buying R5 oZ7 II, I will probably be settled by native lenses

Link | Posted on Oct 2, 2021 at 11:36 UTC
In reply to:

IvanMu: Im architecture photographer and Sony shooter. This weekend i wanna buy Nikon ZII with lenses because im so exhausted with Sony's colour science. But im still in big hesitation about Z future in case of denied third party manufacturers to the bayonet (((

Shooting raw, I have long forgotten the default color profile of each camera. Yes I like my D800's color and I love my 5d3's color.

Link | Posted on Oct 2, 2021 at 06:23 UTC
In reply to:

jackie semple: Amazon are now selling the Tamron 28-200 for £639 in the UK which contrasts with £1599 for the 35-150 (not Amazon). Not comparable lenses I know but both can be described as all in one type lens solution, with nearly a £1000/$1000 price difference. Such a price difference for a 'travel zoom' still makes the 28-200 an attractive option. Personally, I would prefer having the Tamron 28-75 (that I currently own) and the 70-180 that I covet but don't own as ye!. Spoiled for choice.

35-150/2-2.8 is in a completely different league.

Link | Posted on Oct 2, 2021 at 06:19 UTC
In reply to:

WT21: All the latest benchmarks just makes me sad about the once mighty intel. The folks who brought us the computing revolution.

I'll stick with Mac (recently tried Windows again this year through work -- much prefer OSX), but it's great to see fast choices for all.

An obvious ignorance here is the lack of laptops using 11th gen Intel CPUs.

Link | Posted on Aug 30, 2021 at 00:22 UTC
In reply to:

vv50: "Tehre is no webcam" ??

This is in fact a gaming laptop

Link | Posted on Aug 30, 2021 at 00:21 UTC
In reply to:

Boss of Sony: Which do you prefer for a walk-around lens: 40mm or 50mm? When I went to Japan, I took the Sigma APS-C 30mm f2.8 (equivalent to 45mm), and it was the most useful travel lens I've ever used.

I have this small 35/1.8 DT lens on my Minolta 7D/Sony A100 and then the fantastic 40/2.8 STM glued to my 5DIII. The latter is so sharp that I simply used my late 50/1.8 STM once.
So when Sony launched these little lenses I have been quite surprised by their prices until now.
However, I might still want a 35/1.8 first for a compromise between weight, bokeh quality and price

Link | Posted on Aug 17, 2021 at 11:54 UTC
In reply to:

chadley_chad: Having reached the end of my contract for my Samsung, I waited for the MKII to be released ... and waited ... and waited ... then after months of waiting, gave up and purchased the new S20. I was somewhat relieved ... the Sony price was stupidly high (much higher than originally touted) and reviews of the camera weren’t that impressive. Will the same thing happen with the MKIII ... probably!

My brother asked me to wait for Sony so I just bought an S20 ultra, a 16 month old phone to wait.

Link | Posted on Apr 14, 2021 at 12:15 UTC
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