PIX 2015
iudex

iudex

Lives in Slovak Republic Slovak Republic
Joined on Dec 16, 2011

Comments

Total: 753, showing: 61 – 80
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On CP+ 2015 Sigma Interview article (197 comments in total)
In reply to:

Horshack: Yamaki-san for Prime Minister!

Well the most important was that they made the 18-35/1,8 for K-mount. There are meny great primes from Pentax, but no zooms like this Sigma.
Maybe Pentax will be more attractive for Sigma after bringing the fullframe to the market.

Direct link | Posted on Mar 5, 2015 at 07:39 UTC
In reply to:

The Squire: I always imagined Richard was more of a pop-to-the-cafe-for-a-latte-on-my-singlespeed sorta guy.

Well Richard does not even has that hipster image, there are other guys in DPR stuff whose image could make you think so. ;-)

Direct link | Posted on Feb 20, 2015 at 12:43 UTC
In reply to:

iudex: I see no reason for critisizing the photographer; the pictures are OK given the light situation. Shooting RAW is also desirable, since OOC JPEGs can hide a lot of flaws and I want to see exactly how the lens performs, not showing the most pleasing pictures I can get out of the cameraMaybe if I desired something it would be more portraits at maximum FL and f2,8.
Anyhow the performance of the lens seems fine, but not extraordinary, just slightly above the average. And I think we can expect more from a lens of this cathegory (a lot of glass and high-end features), especially considering the high pricetag. Costing 50% more than the Sigma 18-35 Art it should also perform better, but according to these pics it does not. But I am considering only few real world shots, so I better wait for judgement for regular studio test.

One good example: X-E1 with 50-150mm: http://www.lenstip.com/upload2/125204_fuj50-140_wstep.jpg
Definitely not an ideal combo.

Direct link | Posted on Feb 18, 2015 at 11:16 UTC
In reply to:

piratejabez: Beautiful location! Where were you?

I like it too. Very exotic locations for us, Central Europeans.

Direct link | Posted on Feb 18, 2015 at 11:14 UTC
In reply to:

iudex: I see no reason for critisizing the photographer; the pictures are OK given the light situation. Shooting RAW is also desirable, since OOC JPEGs can hide a lot of flaws and I want to see exactly how the lens performs, not showing the most pleasing pictures I can get out of the cameraMaybe if I desired something it would be more portraits at maximum FL and f2,8.
Anyhow the performance of the lens seems fine, but not extraordinary, just slightly above the average. And I think we can expect more from a lens of this cathegory (a lot of glass and high-end features), especially considering the high pricetag. Costing 50% more than the Sigma 18-35 Art it should also perform better, but according to these pics it does not. But I am considering only few real world shots, so I better wait for judgement for regular studio test.

Marc: no doubt about that. Obviously the smaller, rangefinder-styled bodies are not that suitable for these new fast zooms, they are better off with primer or smaller zooms.

Direct link | Posted on Feb 18, 2015 at 11:12 UTC
In reply to:

FamlilyPhotographer: hahaa....my sigma 35 art has smaller filter size :D

What is here to wonder? Obviously a single focal length lens (especially normal FL) will have smaller filter thread than a zoom starting at wideangle. It´s more about focal range and the start of it than about speed. My Sigma 18-35 with f1,8 has 72mm thread, the same as Pentax 16-85 with slow f3,5-5,6.

Direct link | Posted on Feb 18, 2015 at 11:08 UTC

I see no reason for critisizing the photographer; the pictures are OK given the light situation. Shooting RAW is also desirable, since OOC JPEGs can hide a lot of flaws and I want to see exactly how the lens performs, not showing the most pleasing pictures I can get out of the cameraMaybe if I desired something it would be more portraits at maximum FL and f2,8.
Anyhow the performance of the lens seems fine, but not extraordinary, just slightly above the average. And I think we can expect more from a lens of this cathegory (a lot of glass and high-end features), especially considering the high pricetag. Costing 50% more than the Sigma 18-35 Art it should also perform better, but according to these pics it does not. But I am considering only few real world shots, so I better wait for judgement for regular studio test.

Direct link | Posted on Feb 18, 2015 at 08:30 UTC as 15th comment | 3 replies
In reply to:

Poweruser: Another demonstration of how little "bokeh" is going on in a 2.8 midrange zoom on APS-C. Which is why most people should be happier with either a slower, cheaper, lighter standard zoom or a set of fast primes.

This could have been a winner if as fast as Sigmas 18-35.

If it was f1,8 like the Sigma, it would weigh cca. 2 kg. ;-) I own the Sigma and it is pretty heavy already with it´s mere 1,94 zoom.
As regards the bokeh: the Sigma has appealing f1,8 and you might think that makes perfect bokeh, but it is actually no different from 50mm at f2,8. Out-of-focus blur is influenced not only by luminosity, but also by focal length and the longer FL compensates for slower speed. I think DPR made a comparison of Sigma 18-35 and came to the conclusion that 35mm at f1,8 makes similar background blur as 50mm at f2,8.

Direct link | Posted on Feb 18, 2015 at 08:17 UTC
On my wife and little Felicien in the mother & baby challenge (3 comments in total)

Držím palce.

Direct link | Posted on Feb 17, 2015 at 16:48 UTC as 1st comment

Here is a picture comparing the FF prototype with existing K-S2: http://www.pentaxforums.com/content/uploads/files/1/p1522/_IGP6275.JPG
It is obvious the FF is bigger, but not by much and considering the K-S2 is one of the smallest APSC DSLRs it is clear the FF will be no beast (what is a good newws for me, since I have no interest in FF Behemoth like the D800).

Direct link | Posted on Feb 17, 2015 at 09:00 UTC as 17th comment
In reply to:

Peiasdf: There is a lot of repetition in Pentax's line up. There are 11 primes covering the 30-55mm range, 6 standard zooms from 16mm-50/85/135, etc. I'd imagine Nikon and Canon might be the same but either company sold ten times more cameras than Pentax.

jpino: FF is obviously a step up, but considering APSC segment what exactly you disliked about K-50 with DA 50/1,8 (kit lens is, well, a kit lens nad Tamron superzoom is also far from excellent)? Small, light and inexpensive combo, yet providing a lot of bang for the buck, actually I cannot thing of a better alternative for that money.

Direct link | Posted on Feb 16, 2015 at 17:17 UTC
In reply to:

Peiasdf: There is a lot of repetition in Pentax's line up. There are 11 primes covering the 30-55mm range, 6 standard zooms from 16mm-50/85/135, etc. I'd imagine Nikon and Canon might be the same but either company sold ten times more cameras than Pentax.

jpino: a DSLR camera of course cannot be as small as a CSC, but that does not mean it is big. And if a camera does not fit into a pocket that does not mean the size doesn´t matter at all. I can tell you it is a huge difference if I carry my K-30 all day with tiny 140g prime and if I put a 810g zoom. Especially Pentax APSC cameras are quite small, smaller than competition (save for the Canon 100D), see K-3 vs. competition (D7100, 70D, 7D, a77 II).
As regards the Limiteds: if they wer f2,8 or faster, they wouldn´t be this small. My 15mm Limited is so small that I do not even notice it is in my pocket. If it was 1 or 2 EV faster, it would weigh much more and the appeal of tiny and light Limited would be lost.

Direct link | Posted on Feb 16, 2015 at 12:40 UTC
In reply to:

Peiasdf: There is a lot of repetition in Pentax's line up. There are 11 primes covering the 30-55mm range, 6 standard zooms from 16mm-50/85/135, etc. I'd imagine Nikon and Canon might be the same but either company sold ten times more cameras than Pentax.

wildkat: really? So I shouldn´t have sold it. ;-) Anyhow it´s the cheapest prime so if I go FF it´s no problem to buy it again.
As regards the 40mm: I meant that it is pointless to have two identical lenses: the only difference is that the one is very small and the other is even smaller.

Direct link | Posted on Feb 16, 2015 at 10:47 UTC
In reply to:

iudex: Great job Pentax!
By the time of announcement of final FF camera there should be 12 FF lenses, 7 primes and 5 zooms, covering the range from 15 to 450mm. So basically immediately from the start there will be lenses covering most of the needs and situations. :-)

Now with the FF coming I believe your work will get more appreciation. ;-)

Direct link | Posted on Feb 13, 2015 at 14:08 UTC
In reply to:

Rutterbutter: Lets see what would we want...
- 36+ Megapixel
- 1/250th / sec flash sync or faster
- wifi
- focus peaking
- Dx lens compatibility
- Faster Focus speed and sensitivity
- 4K video/30+fps
- Touch screen with toggle to de-activate
- 7+FPS
- ISO Native 50-102400 or higher
- 100% viewfinder
- Weather sealed/magnesium body
- Digital focus crop. Like D7100 for maximizing focus coverage
- Better in camera HDR and live preview of filters
- No AA filter
- 1000 shot battery approx
- Swivel screen and articulating.

Feel free to add to this. but this would probably be the best selling camera ever..

There are no DX lenses for Pentax. DX is a name only Nikon uses for designation of APSC sensor (DX lenses = Nikon lenses for APSC). Pentax lenses for APSC sensor are called DA.

Direct link | Posted on Feb 13, 2015 at 11:37 UTC
In reply to:

ogl: OVF 100% 0.8x - not lower
36 MP sensor
wider AF points than in APS-C cameras
No AA filter
It's enough for me

There is no real difference, see dxo:
36 MPx in D810: 97 pts, DR: 14,8 EV, high ISO: 2853
24 MPx in D610: 94 pts, DR: 14,4 EV, high ISO: 2925
24 MPx in D750: 93 pts, DR: 14,5 EV, high ISO: 2956
So the 3 MPx has slightly better DR, but slightly worse high ISO.
But no matter the studio tests, for me 36 MPx pictures are not only useless, but most importantly too big (more space, slower postprocess, slower fps, smaller buffer...).

Direct link | Posted on Feb 13, 2015 at 11:35 UTC
In reply to:

iudex: Great job Pentax!
By the time of announcement of final FF camera there should be 12 FF lenses, 7 primes and 5 zooms, covering the range from 15 to 450mm. So basically immediately from the start there will be lenses covering most of the needs and situations. :-)

Barry: had a look at it. Nice job, you really took a lot of time to do it that thoroughly.

Direct link | Posted on Feb 13, 2015 at 11:17 UTC
In reply to:

Rutterbutter: Lets see what would we want...
- 36+ Megapixel
- 1/250th / sec flash sync or faster
- wifi
- focus peaking
- Dx lens compatibility
- Faster Focus speed and sensitivity
- 4K video/30+fps
- Touch screen with toggle to de-activate
- 7+FPS
- ISO Native 50-102400 or higher
- 100% viewfinder
- Weather sealed/magnesium body
- Digital focus crop. Like D7100 for maximizing focus coverage
- Better in camera HDR and live preview of filters
- No AA filter
- 1000 shot battery approx
- Swivel screen and articulating.

Feel free to add to this. but this would probably be the best selling camera ever..

And my opinion:
1. please no, 36 MPx is too much, 24 MPX max (16 MPx even better)
2. nice, but not probable and for me not that important/needed
3. probable and tecnically no problem, nice to have, even if not crucial
4. obvious
5. Pentax already said that
6. yes, focusing speed is crucial
7. forget it, technically hard (with 24 MPx) or impossible (with 36 MPx)
8. there won´t be for sure
9. the more MPx, the less probable, I guess 6 fps with 24 MPx and sub-5 fps with 36 MPx
10. I guess 100-51200 native, 50-102400 extended
11. sure thing
12. sure thing
13. there will be crop mode with DA lenses
14. irrelevant for FF
15. sure thing
16. not probable, I guess 600 max.
17. no full articulation, only tiltable up and down.

Direct link | Posted on Feb 13, 2015 at 11:08 UTC
In reply to:

ogl: OVF 100% 0.8x - not lower
36 MP sensor
wider AF points than in APS-C cameras
No AA filter
It's enough for me

Please no 36 MPx sensor, 24 MPx is enough (16 MPX would be the best for me, but I understand it does not have marketing potential).

Direct link | Posted on Feb 13, 2015 at 10:57 UTC
In reply to:

Petroglyph: Is the 25-70 f/2.8 a typo? Maybe it should be 24-70?

Itś not a typo, DPR only guessed from the blurred lines on the roadmap. But obviously standard for FF is 24-70mm so it is almost sure the lens will be like this.

Direct link | Posted on Feb 13, 2015 at 10:29 UTC
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