HSway

HSway

Lives in United Kingdom London, United Kingdom
Has a website at www.sunwaysite.com
Joined on Mar 21, 2010

Comments

Total: 87, showing: 1 – 20
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Remarkable optics.

Direct link | Posted on Mar 20, 2015 at 10:55 UTC as 33rd comment
In reply to:

HSway: The Tamron might have less complex field curvature. It has better CA control, the scene tests this nicely. Differences here and there aside, the Tamron is equal player and gets you lens even bulkier than not exactly small Nikkor and narrower angle for a much better price. And gives you VC which may be that decisive feature for some. In other words Tamron again comes with an excellent option.

Yes, thanks. I am referring to axial CA as the more or definitely just as useful to get some comparative tools for. Surely these are more difficult to make and present. For lenses from f2.8 in particular but not only. Slower lenses like f4 can be quite terrible in this regard.
There are plenty of those measuring lateral CA.

Direct link | Posted on Mar 6, 2015 at 09:30 UTC
On CP+ 2015 Sigma Interview article (195 comments in total)
In reply to:

HSway: Samples tell us 24 Art bokeh can be very jittery. I don’t say it lightly, I am not any of the bokeh fanatics or a Sigma basher and I am very happy with 50 Art and 60 Art in this particular respect. The point is that while this is absolutely OK with some, say, (14-) 24/4 lens the purpose of f1.4 lens fills also different roles where this is a consideration. I wish they take it into account with such fast lenses including UWAs and avoid rendition that really can be distracting and limiting for certain uses. (As distanced from the character; most people will agree on the difference - my Touit 32 can have unpleasant jittery bokeh @f1.8, it changes to character I love @f2.2, I could go on).
No it is not a disaster but it makes the potential of the lens less versatile.

Not that the standards are not high but thank you for the most interesting article.

OK guys, we come from various brands, you certainly have a point. Nikon has spoilt us maybe a bit more here (not always). 20/1.8G seems to have clearly struck a better balance. And 24/1.4G simply is a different lens - which does translate to having options as a good thing. Btw, and despite the first samples, it’s still early days.

Direct link | Posted on Mar 6, 2015 at 07:05 UTC
In reply to:

HSway: The Tamron might have less complex field curvature. It has better CA control, the scene tests this nicely. Differences here and there aside, the Tamron is equal player and gets you lens even bulkier than not exactly small Nikkor and narrower angle for a much better price. And gives you VC which may be that decisive feature for some. In other words Tamron again comes with an excellent option.

I agree, absolutely. I haven't actually ever seen nearly this much CA from my lens on usual conditions. But I don’t shoot comparison tests for it often either:) Still, starting from LR 4, I think, this would take just the default profile to clean it.
I think that having high brightness/contrast induced axial CA quantified using a standard test would be (more) useful. I saw somewhere you or Barney referring to this as well.

Direct link | Posted on Mar 6, 2015 at 06:47 UTC

The Tamron might have less complex field curvature. It has better CA control, the scene tests this nicely. Differences here and there aside, the Tamron is equal player and gets you lens even bulkier than not exactly small Nikkor and narrower angle for a much better price. And gives you VC which may be that decisive feature for some. In other words Tamron again comes with an excellent option.

Direct link | Posted on Mar 5, 2015 at 21:53 UTC as 77th comment | 7 replies
In reply to:

Karl Summers: Aside from sharpness, how do you account for the difference in hue/luminance values in the blue trim around the window?

Yeah, that’s the one.

Direct link | Posted on Mar 5, 2015 at 20:00 UTC
In reply to:

Karl Summers: Aside from sharpness, how do you account for the difference in hue/luminance values in the blue trim around the window?

No Nikkor is known for holding more detail in the highlights. You will appreciate it if you process raws. I sold a lens for sterile highlights before (Tokina 100).

Direct link | Posted on Mar 5, 2015 at 18:47 UTC
On CP+ 2015 Sigma Interview article (195 comments in total)
In reply to:

HSway: Samples tell us 24 Art bokeh can be very jittery. I don’t say it lightly, I am not any of the bokeh fanatics or a Sigma basher and I am very happy with 50 Art and 60 Art in this particular respect. The point is that while this is absolutely OK with some, say, (14-) 24/4 lens the purpose of f1.4 lens fills also different roles where this is a consideration. I wish they take it into account with such fast lenses including UWAs and avoid rendition that really can be distracting and limiting for certain uses. (As distanced from the character; most people will agree on the difference - my Touit 32 can have unpleasant jittery bokeh @f1.8, it changes to character I love @f2.2, I could go on).
No it is not a disaster but it makes the potential of the lens less versatile.

Not that the standards are not high but thank you for the most interesting article.

Have a closer look at these samples. I will link the discussion where we were debating the 24 Art. It's from Dpreview’s set.

http://www.dpreview.com/forums/post/55329614

Direct link | Posted on Mar 5, 2015 at 13:21 UTC
On CP+ 2015 Sigma Interview article (195 comments in total)

Samples tell us 24 Art bokeh can be very jittery. I don’t say it lightly, I am not any of the bokeh fanatics or a Sigma basher and I am very happy with 50 Art and 60 Art in this particular respect. The point is that while this is absolutely OK with some, say, (14-) 24/4 lens the purpose of f1.4 lens fills also different roles where this is a consideration. I wish they take it into account with such fast lenses including UWAs and avoid rendition that really can be distracting and limiting for certain uses. (As distanced from the character; most people will agree on the difference - my Touit 32 can have unpleasant jittery bokeh @f1.8, it changes to character I love @f2.2, I could go on).
No it is not a disaster but it makes the potential of the lens less versatile.

Not that the standards are not high but thank you for the most interesting article.

Direct link | Posted on Mar 5, 2015 at 11:46 UTC as 34th comment | 19 replies
On CP+ 2015 Sigma Interview article (195 comments in total)

I think each (UWA) design faces number of challenges. At this point I’d focus on breaking FL (AOV) numbers last. Much greater achievement, though less spectacular, is obtaining top parameters at the start/end of the range and from the wide open. There is number of challenges just for the resolution characteristics. Such as properties at the frame's periphery or the field curvature. They will want to keep the distortions in check and if they get bored there is the flare resistance or filter accommodating steps. 14-24/4 is then the best possible specification for the widest range of photographers. I would want to excel there. I am unsure Sigma will resist, though. They already have the 2d v. of 12-24 (f4.5-5.6)
The same for a 24-70/2. Just look carefully what numbers to break. You will never break them all and although the size/weight may not nearly be the priority it still remains a practical part of the product’s properties as does the general sense of a lens spec in practical terms.

Direct link | Posted on Mar 5, 2015 at 11:14 UTC as 36th comment
On Morning Wake-up Call in the My Best Photo of the Week challenge (14 comments in total)

Brilliant:)

Direct link | Posted on Nov 26, 2014 at 17:07 UTC as 7th comment
On UK Landscape Photographer of the Year winners announced article (160 comments in total)

Great shots.. I can see the appeal of No 1. No 9 and 7 are excellent. No 10 also for B & W.

Direct link | Posted on Nov 15, 2014 at 14:27 UTC as 46th comment
On Opinion: Bring on the 70-200mm equivalents article (340 comments in total)

Agree with this 100%, all formats are full frame. I also say 135 format (or Fx) but never full frame.

Direct link | Posted on Sep 20, 2014 at 21:36 UTC as 75th comment
On Canon India teases 'something big' coming soon article (150 comments in total)

Looks like 100-400 L IS my guess as well.
And the rumours about the 7d ll are culminating so there may be more good news for Canon in the coming weeks.

Direct link | Posted on Jul 31, 2014 at 20:42 UTC as 51st comment
On Nikon D810 Preview preview (1591 comments in total)

I always enjoy the 'Shooting experience' series.
I just wanted to mention that the ‘Odd experience using EFC in LV’ note presents more subjective perception.
If you shoot in LV this reminds you that you are shooting in LV (I only focus in LV) which may not be the optimal mode for you. And that it drains more power from the battery and introduces more noise into the image which may or may not be a factor for one depending on settings and on the nature of the shoot and the requirements one has. or whether you shoot at ambient temperatures of 30 - 45 C which is common in some areas. So there is quite a different view to this - as the shooting experience goes - as well.

Direct link | Posted on Jul 31, 2014 at 09:08 UTC as 99th comment
On Afternoon Delight in the My Best Photo of the Week challenge (9 comments in total)

Very nice work.

Direct link | Posted on Jun 11, 2014 at 12:10 UTC as 5th comment
On Fujifilm XF 56mm F1.2 R real-world samples gallery article (270 comments in total)
In reply to:

Ian Leach: Although this focal length is going to be used more for objects than scenes, it would be nice to see how it performs right into the corners. Sky, sea, tarmac and dirt don’t tell you very much. Please always have one f8 photo looking across a town with buildings receding into the distance.

You can’t quite rely on these samples because you would need to know where the focus was, because of the resulting DOF variability and the field curvature. These are about something else I believe -much less about a controlled test. The tractor shot is at f8 and a (very) decent s. speed.

Direct link | Posted on Apr 30, 2014 at 20:38 UTC
On Fujifilm XF 56mm F1.2 R real-world samples gallery article (270 comments in total)
In reply to:

HSway: Looking at the Sony, Fuji and other major players in mirrorless field I am actually *glad* that Nikon and Canon effectively as well left them this segment to themselves. They build systems I have serious doubts Nikon would come close to. Same for the large sensor compacts. Nikon was always, except an occasional feat, struggling outside the dslr.
The more so that the segment is picking up more slowly. They perhaps deserve more coin than they get at the moment but this is a work that will pay off though it can’t be quite fully evaluated by a yearly profit just yet.

@jim stirling I have one of those Fx cameras so that I agree (I said Nikon is good at it). But I was writing about the mirrorless cameras. And I see compact system cameras that have a real future only in cameras built around aps-c sensor size oe similar. The 1 inch type sensor is brilliant choice for compacts. Not a good *strategy* for anything else. Please read, I say strategy.

Direct link | Posted on Apr 30, 2014 at 20:18 UTC
On Fujifilm XF 56mm F1.2 R real-world samples gallery article (270 comments in total)
In reply to:

HSway: Looking at the Sony, Fuji and other major players in mirrorless field I am actually *glad* that Nikon and Canon effectively as well left them this segment to themselves. They build systems I have serious doubts Nikon would come close to. Same for the large sensor compacts. Nikon was always, except an occasional feat, struggling outside the dslr.
The more so that the segment is picking up more slowly. They perhaps deserve more coin than they get at the moment but this is a work that will pay off though it can’t be quite fully evaluated by a yearly profit just yet.

Ever heard the industry is a tad struggling? - more money left for those that can do it.

Direct link | Posted on Apr 30, 2014 at 16:42 UTC
On Fujifilm XF 56mm F1.2 R real-world samples gallery article (270 comments in total)

Looking at the Sony, Fuji and other major players in mirrorless field I am actually *glad* that Nikon and Canon effectively as well left them this segment to themselves. They build systems I have serious doubts Nikon would come close to. Same for the large sensor compacts. Nikon was always, except an occasional feat, struggling outside the dslr.
The more so that the segment is picking up more slowly. They perhaps deserve more coin than they get at the moment but this is a work that will pay off though it can’t be quite fully evaluated by a yearly profit just yet.

Direct link | Posted on Apr 30, 2014 at 15:34 UTC as 24th comment | 6 replies
Total: 87, showing: 1 – 20
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