HubertChen

HubertChen

Lives in China Guangzhou, China
Works as a CEO
Joined on Jun 29, 2011

Comments

Total: 605, showing: 1 – 20
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On Pentax K-S2 added to studio scene article (73 comments in total)

I was very surprised to see that the K-S2 is far worse than the K-50 in the studio comparison. When searching for the lens information I could find none.

This studio test is more of a lens test than a sensor test, thus lens model information and lens settings are very useful and lacking.

If they are present and I overlooked it, please be so kind to let me know where to find them.

Direct link | Posted on Apr 19, 2015 at 15:48 UTC as 4th comment | 1 reply
In reply to:

Mac McCreery: Pentax do seem to make photographer friendly cameras. I have handled many brands in my local Jessops in the Uk (the Birmingham branch). The Pentax is my preference. We all have our own preferences with regard handling. I guess that Pentax have announced these lenses first as users often complain of the lack of longer telephoto zooms.

As for Pentax not having a good lens range- I find that an odd and unfounded argument.

Dear Barry (Pentax has weird zoom lens portfolios)

On that one I agree fullheartedly :-) It seems they forgot to pull some older full frame lens designs :-)

Direct link | Posted on Feb 25, 2015 at 15:07 UTC
In reply to:

Mac McCreery: Pentax do seem to make photographer friendly cameras. I have handled many brands in my local Jessops in the Uk (the Birmingham branch). The Pentax is my preference. We all have our own preferences with regard handling. I guess that Pentax have announced these lenses first as users often complain of the lack of longer telephoto zooms.

As for Pentax not having a good lens range- I find that an odd and unfounded argument.

Dear Barry, (why the hell I wrote so much)

I replied to you in the first place as I misunderstood your complaint as the typical non informed poster who does the typical Pentax bashing.

Instead you know more about Pentax zooms than I do. I use primes.

I see your points. They are personal and they are understandable. Not every photographer will see it the same way though.

I guess I wanted help that others reading these posts do not discard Pentax simply because of personal statements that their lens range is no good.

I think the Pentax lens range is no better or worse than others. It has its weaknesses and it has its strengths, which makes it a valid choice among many great photography brands.

Direct link | Posted on Feb 25, 2015 at 15:05 UTC
In reply to:

Mac McCreery: Pentax do seem to make photographer friendly cameras. I have handled many brands in my local Jessops in the Uk (the Birmingham branch). The Pentax is my preference. We all have our own preferences with regard handling. I guess that Pentax have announced these lenses first as users often complain of the lack of longer telephoto zooms.

As for Pentax not having a good lens range- I find that an odd and unfounded argument.

Dear Barry, (about DA* 16-50mm and DA* 50mm-135mm)

16-50 mm is the APS-C equivalent of 24-70 mm. and 50-135 mm thus is the equivalent to 70-200 mm. Both zoom ranges are standard zooms for Full Frame and this split is well accepted in the industry.

However, Canon has the 24 to 105 mm f/4 and many photographers love this lense, evern it is relatively slow and not optically superb, but it has a zoom-range that many find perfect.

As you wrote, I think many photographers can discuss this to death and never come to a conclusion.

Myself I shoot primes, as I like the higher quality and nicer bokeh.

Direct link | Posted on Feb 25, 2015 at 15:00 UTC
In reply to:

Mac McCreery: Pentax do seem to make photographer friendly cameras. I have handled many brands in my local Jessops in the Uk (the Birmingham branch). The Pentax is my preference. We all have our own preferences with regard handling. I guess that Pentax have announced these lenses first as users often complain of the lack of longer telephoto zooms.

As for Pentax not having a good lens range- I find that an odd and unfounded argument.

Dear Barry, (about Ultra Short Zoom)

The 8-16 mm Sigma is superb and it is available in Pentax K mount: http://www.sigmaphoto.com/product/8-16mm-f45-56-dc-hsm

To my understanding 8-16 mm is not available by any major APS-C Brand, so Pentax is not better or worse than others.

The 8-16 mm from Sigma is without peer, so if this is your thing, this is the lens to go for.

http://www.photozone.de/canon-eos/515-sigma816f4556apsc?start=1

I am as excited as you about the new Wide Angle Zooms Pentax has announced. But I am worried that as for Full Frame they will be rather big. What is attractive to me is the small over all size of Pentax APS-C Camera plus their small prime lenses.

Direct link | Posted on Feb 25, 2015 at 14:49 UTC
In reply to:

Mac McCreery: Pentax do seem to make photographer friendly cameras. I have handled many brands in my local Jessops in the Uk (the Birmingham branch). The Pentax is my preference. We all have our own preferences with regard handling. I guess that Pentax have announced these lenses first as users often complain of the lack of longer telephoto zooms.

As for Pentax not having a good lens range- I find that an odd and unfounded argument.

Dear Barry, (about weather sealing)

Thanks for you in depth reply. My comment was meant on optical quality. If you consider to include weather sealing, this is a different matter. But to be fair, many competitors do also no have a complete zoom range AND weather sealing.

Please note that I should with my Pentax gear regularly in adverse weather conditions and never had a problem. None of my lenses are weather sealed. Here is my trick, it might be useful to you:

- After every shoot place lenses and camera in a dry cabinet
- I set my cabinet to 30% humidity, this dries out any gear, I found 50% not to be sufficient
- Always unmount lenses from camera, so humidity of camera can escape through lens mount
- never mount the lens cap on lens mount, so humidity of lens can escape that way
- place camera lens mount and lens mount of lens down so no dust goes in

Direct link | Posted on Feb 25, 2015 at 14:43 UTC
On Olympus OM-D E-M5 II First Impressions Review preview (1392 comments in total)

Compliments to great writing on "First Impressions" and "Shooting Experience". For me every camera is technically good enough, but handling of most cameras clearly is not. Thus (for me) these pages are the most important pages in any review. Keep up the good work.

Personally I would even enjoy more pages about handling and less pages about Image Quality and technical details. I did not even looked at the IQ pages. Again, all cameras good enough for me. I am shopping for a camera with better handling, not with better IQ.

Direct link | Posted on Feb 22, 2015 at 04:33 UTC as 58th comment | 1 reply
On New samples from the Sigma 24mm F1.4 DG HSM Art lens article (236 comments in total)
In reply to:

Jonathan Wilson: Looks great. I'm certainly looking for something around this focal length but sadly there are apparently no plans to make this in Pentax mount.

They should consider, period. My absolute favorite lens is 35 mm f/2 and I shoot it open almost all the time. There is nothing to go wider and stay open. The Pentax 21 mm is an excellent lens, but it is only f/3.5. The Sigma 24 mm f/1.4 makes perfect sense on APSC. And Pentax is a much bigger market than Sigma expects, as there are so many Pentaxians shooting with prime lenses! I wonder if Pentax User base * Prime lens users > Canon User Base * Prime lens users? So the Pentax lens market for prime lenses is actually bigger than the Canon one!

Direct link | Posted on Feb 22, 2015 at 04:13 UTC

Maybe when seeing how big Full Frame Lenses suitable for sensor shift image stabilization are will cause a good thing: A lot of those who cried for a Pentax Full Frame camera for so long might realize that APS-C has its place. It provides a great balance: You can bring a complete range of lenses in a shoulder bag versus a full fledged photo back pack!

Direct link | Posted on Feb 17, 2015 at 14:52 UTC as 2nd comment | 12 replies
In reply to:

Mac McCreery: Pentax do seem to make photographer friendly cameras. I have handled many brands in my local Jessops in the Uk (the Birmingham branch). The Pentax is my preference. We all have our own preferences with regard handling. I guess that Pentax have announced these lenses first as users often complain of the lack of longer telephoto zooms.

As for Pentax not having a good lens range- I find that an odd and unfounded argument.

Pentax High Quality Zoom range is complete:

- 12-24 f/4 AL ED [IF]
- 16-50mm f/2.8 ED [IF] SDM
- 50-135mm f/2.8 ED [IF] SDM
- 60-250mm f/4 ED [IF] SDM

Image quality is very good. Handling too.

The 60-250mm f/4 ED [IF] SDM is a gem and can surpass what other brands have. → http://www.photozone.de/pentax/479-pentax_60250_4?start=2

And Pentax has what many brands lack, which is a selection of superb prime lenses. Think Leica lens in terms of size and rendering, but with auto-focus and affordable price tag.

All of the above lenses are for APSC

In case your comment was meant for Full Frame, please note that most of Pentax Lenses are Full Frame. Even they did not shipped a full frame camera for over a decade, they kept most lens design to remain full frame. Almost all my Pentax lenses are full frame. They IQ is great on APS-C 16 MP, so they shall do fine on FF. Time will tell.

Pentax Lens Reviews: http://www.photozone.de/pentax

Note that 3.5 star on this site = good quality

Direct link | Posted on Feb 17, 2015 at 14:45 UTC
In reply to:

ZoranHR: Big lenses on a small body and mechanicaly poorly made mount. Glue? ;-)

Or he would be crying about the missing AF.

Direct link | Posted on Jan 12, 2015 at 07:15 UTC
On Leica T (Typ 701) First Impressions Review preview (2249 comments in total)

At this price point the EVF really should have been included. This is about haptic. Leica shooters would want a viewfinder. An external one makes this camera very cumbersome in handling. And good handling is one of the things Leica users pay a premium for.

Direct link | Posted on Apr 24, 2014 at 15:32 UTC as 622nd comment | 1 reply
On Leica T (Typ 701) First Impressions Review preview (2249 comments in total)
In reply to:

Juraj Lacko: That brushed aluminium will pick scratches like crazy.

There are different Aluminum alloys, some softer, some harder. And then there is Anodizing, which creates a very hard surface. So if you combine a hard aluminum alloy with a thick layer of anodizing, it can be very scratch resistant.

Direct link | Posted on Apr 24, 2014 at 15:30 UTC
On A travel-sized large-format 4x5 camera? article (219 comments in total)

Buy a Zeiss Ikonta used with 6x9 cm roll film. With a Zeiss lens, precise focal distance markings and a better balance of film format to hand holding, you will get sharper pictures at faster shooting speed (Roll Film) and still higher resolution images. The Zeiss Ikonta is fold-able and I used that to have lens movement. Not too precise, but much better than no lens movement. Great to increase depth of field in landscape photography and with practice works well enough.

This camera will certainly qualify to shoot with a unique device and film cost will not kill you.

As for scanner, use your 16 MP DSLR with a Macro lens. Works fast with excellent quality.

For anybody looking for a different photography experience, this would be a more practical one.

When shooting black and white, you can benefit from larger latitude than your DSLR, so at least there is a technical benefit to go through this pain.

Unfolding this camera on party will also make it easy to start a conversation :-)

Direct link | Posted on Apr 22, 2014 at 11:34 UTC as 34th comment

Wow, amazing lens! Sharp wide open, nice bokeh, no purple fringing. And really very nice rendering. I am sold.

Except it is almost 1 kg and the size of tele. But then again no other 50 mm f/1.4 at this quality level is any smaller. Congratulations to sigma.

And thanks to who took the sample shots. Very useful for evaluating this lens! I would have cared for some landscape shots @ f/5.6 with a 36 MP sensor. I would hope it to be extremely sharp, but then it would be nice to see it.

I am very surprised for such an amazing lens only so few comments.

Direct link | Posted on Apr 21, 2014 at 17:09 UTC as 4th comment
On Mockups emerge of new Olympus OM-D 'OM-G' article (332 comments in total)

Hilarious! Can't wait for next year :-)

Direct link | Posted on Apr 4, 2014 at 13:56 UTC as 16th comment

At this size and price and battery capacity the most straight forward way to reduce noise is simply to cool down sensor and electronics with a peltier element. Works wonders for your Signal to Noise ratio and is very easy to do. It is simply not done in consumer cameras due to size and battery usage.

Direct link | Posted on Mar 5, 2014 at 13:53 UTC as 6th comment | 2 replies

Many DP Merrill users have 2 or three of these cameras, as each lens comes with a camera. For such a use case it is surprising to design a camera that protrudes in the rear and in the front, making the carry bag for several DP Merrill cameras that much bigger.

Direct link | Posted on Feb 11, 2014 at 12:40 UTC as 51st comment | 3 replies
On Fujifilm X-T1 First Impressions Review preview (1645 comments in total)
In reply to:

Low Budget Dave: I hope DPR will do a complete review of this soon. If the tracking AF really is good enough for sports, then Fuji nailed this one.

I am a huge fan of Fuji. Yet how is this better than the Olympus? I has great AF, great glass, great EVF, great button layout, great customization. So up till now it is a par. But Oly also has in body image stabilization. I'll give Fuji the aperture ring, which I really miss on my current camera :-) And believe it or not, having an aperture ring makes teaching photography much easier. I always go back to my film cameras to explain aperture and shutter speed to newbies.

Direct link | Posted on Jan 28, 2014 at 12:40 UTC
In reply to:

HubertChen: Fuji keeps impressing me by making a practical innovation of something that has not been improved by all other companies for decades. This new layout makes lots of sense. In Video compression regularly more information is given to luminescence than color information with great success.

That is simpler indeed. Fuji just went two extra steps:
a) making green and luminescence bigger as we are more sensitive to these.
b) randomizing the layout to reduce moire.

Direct link | Posted on Jan 24, 2014 at 11:11 UTC
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