siggo

siggo

Lives in Australia Adelaide, Australia
Works as a RetiredAutomotive Engineer
Joined on Jan 5, 2009

Comments

Total: 33, showing: 1 – 20
« First‹ Previous12Next ›Last »
On Olympus debuts 'Anywhere Classroom' video series article (43 comments in total)
In reply to:

Artpt: Is there any information on watch camera was used to film this tidbit?

Says at end ..all shot on OM-D EM-1.
(Nice demo of blue CA at 3:01 and other places. shooting trees against bright sky! )

Direct link | Posted on Jun 27, 2014 at 03:28 UTC
On A GoPro Hero's journey into a dishwasher article (168 comments in total)

Never expected to see this sort of stuff on dpreview

Direct link | Posted on Jun 5, 2014 at 12:05 UTC as 72nd comment | 1 reply

Umm Sony, could you PLEASE do this for A7R???

Direct link | Posted on May 14, 2014 at 13:59 UTC as 21st comment | 3 replies

Thanks for posting this interesting article.
Would be very interesting to see a blog on how you actually get in and adjust a lens.
Machine name " POLC " Precision Optical Lens Checker

Direct link | Posted on Apr 1, 2014 at 02:41 UTC as 84th comment

Very clever marketing

Direct link | Posted on Mar 28, 2014 at 10:05 UTC as 32nd comment

Found this..http://www.imatest.com/docs/sharpness/
Sorry for all this off topic. Cheers

Direct link | Posted on Mar 20, 2014 at 10:43 UTC as 3rd comment
In reply to:

siggo: Am I the only one who thinks that a LENS test should test the LENS and it's optical properties? Then we can choose LENSES . These tests include the CAMERA as well. Sony offer adaptors for other lenses. How can we choose those lenses when their sharpness was determined on a different (possibly inferior) sensor. Sony will be delighted that their lenses appear fantastic here, in part due to their 36Mpix sensor.
Obviously as a Lens/camera combination checking sharpness etc these tests have an important role, but perhaps Sony has opened up the need for camera independent lens tests to be included on sites like this. Apologies for long post and maybe it belongs in forum section

Can't see edit button now.My comment may be wrong, need to check how MTF 50 is found. Apologies. However reviewer himself said good result partly due to sensor.

Direct link | Posted on Mar 20, 2014 at 09:50 UTC

Am I the only one who thinks that a LENS test should test the LENS and it's optical properties? Then we can choose LENSES . These tests include the CAMERA as well. Sony offer adaptors for other lenses. How can we choose those lenses when their sharpness was determined on a different (possibly inferior) sensor. Sony will be delighted that their lenses appear fantastic here, in part due to their 36Mpix sensor.
Obviously as a Lens/camera combination checking sharpness etc these tests have an important role, but perhaps Sony has opened up the need for camera independent lens tests to be included on sites like this. Apologies for long post and maybe it belongs in forum section

Direct link | Posted on Mar 20, 2014 at 07:59 UTC as 4th comment | 1 reply
In reply to:

OBI656: Because of this update I purchased A7R and what a pleasant surprise ... If Zeiss optics will proof their reputation I will damp my CANON system.

Obviously your store is not in Hungary or you would be needing to get permission from the strangers....tears or no tears!!! 8-)

Direct link | Posted on Mar 20, 2014 at 07:24 UTC
In reply to:

jhsymington: An update of my post two hours ago - I ran the update again on the A7R and it worked second time round. Ignore the fixed red light but otherwise dead camera and just try again - the update will start halfway through but the second time it concluded successfully. Not a great process Sony!

From posts on other forums there are a lot of users "making errors" some needing 5 or more tries...

Direct link | Posted on Mar 20, 2014 at 07:19 UTC

Barney, as so many are hopeful the "image improvements" will address some of the issues you highlighted in your review, does dpreview plan to check? eg selective noise reduction overshoot, does it now avoid worst shutter speeds for shake in auto ISO? , jpeg NR etc.

Direct link | Posted on Mar 20, 2014 at 00:39 UTC as 6th comment
On Nikon 1 V3: a quick summary article (597 comments in total)
In reply to:

olyflyer: What a stupid idea those Nikon geniuses came up with...

Optional EVF, you have to chose to use a flash or an EVF... the same stupid idea Olympus implemented in their entry level mirrorless cameras. While the flip LCD is nice and useful, the removal of EVF is the craziest thing Nikon could do with this system. No future for me there, glad that I bought the V1 which is probably my last Nikon 1, unless Nikon makes one WITH an integrated EVF.

Yep, as the great philosopher Stephen Wright said "you can't have everything: Where would you put it?" Wanting a usaeable viewfinder in bright light and fill in flash is hardly wanting it all though, it's a given for anyone but the camera phone brigade IMHO.

Direct link | Posted on Mar 13, 2014 at 12:49 UTC
In reply to:

Jogger: Seems ok for budget video folks.. but, why would anyone buy this for stills when the A7 is cheaper, much smaller, better built, and with 4x the sensor size... at this size and price, you might as well go for the D610.

"I have a lot of Canon glass and it knocks the socks of Sony's launch range for the A7." (EOSHD)
???
This site gave brilliant results for 35 and 55 Sony A7R lenses.
Limited range yes, but 55 one of the sharpest they have tested.

Direct link | Posted on Mar 10, 2014 at 13:46 UTC
On Sony Alpha 7R Review preview (805 comments in total)

Can someone please point me to some full resolution raw shots using the 55mm and 35mm lens and software to try converting them?

Direct link | Posted on Mar 6, 2014 at 07:53 UTC as 58th comment
On Sony Alpha 7R Review preview (805 comments in total)

Apologies if I missed it, but you mentioned the diffraction reduction feature, but I can't find any evaluation if it. Assume it would be evident in, say, f16 or higher when comparing jpeg to raw?

Direct link | Posted on Mar 4, 2014 at 12:35 UTC as 62nd comment

I think they should stick this offer where the light is -5EV (where the sun doesn't shine) Once again the people who sell make disproportionally more than the people who create.

Direct link | Posted on Feb 10, 2014 at 01:38 UTC as 21st comment | 1 reply
On Canon EOS 6D In-Depth Review preview (49 comments in total)

Does the 6D lack an anti-aliassing filter?

Direct link | Posted on Jan 15, 2014 at 06:47 UTC as 16th comment | 2 replies
On Bristol Centaurus Aero Engine in the Inside a Combustion Engine challenge (4 comments in total)
In reply to:

brancaleone: Are we sure that this picture is an inside combustion engine rather than a transmission differential? Nicely done image but nothing tells me that there's a combustion chamber, a piston, a rod, a crankshaft, or valves.
Just a thought.

https://www.google.com.au/search?q=Bristol+Centaurus+Aero+Engine&espv=210&es_sm=93&tbm=isch&tbo=u&source=univ&sa=X&ei=B2ekUr3QHsjyiAfyvYHYDA&ved=0CDsQsAQ&biw=1920&bih=1074#facrc=_&imgdii=_&imgrc=OhXQirYkAHpdwM%3A%3BPGef01oZnellRM%3Bhttp%253A%252F%252Fwww.flightglobal.com%252Fairspace%252Fmedia%252Faeroenginespistoncutaways%252Fimages%252F5672%252Fbristol-centaurus-cutaway.jpg%3Bhttp%253A%252F%252Fforums.autosport.com%252Ftopic%252F137848-interesting-1907-engine%252Fpage-2%3B850%3B671
Looks like this picture is of the airscrew reduction gear set on the front of the engine. Is it inside the engine?. Difficult question...maybe it is inside the engine package. Anyway, a nice photo. And this is a photo site not an engineering one!

Direct link | Posted on Dec 8, 2013 at 12:40 UTC
On INSIDE THE ENGINE in the Inside a Combustion Engine challenge (1 comment in total)

Meets the rules, nice

Direct link | Posted on Dec 8, 2013 at 12:27 UTC as 1st comment
On NHRA Dragster Rebuild 2675 in the Inside a Combustion Engine challenge (1 comment in total)

Nice...DOES show INSIDE the engine

Direct link | Posted on Dec 8, 2013 at 12:24 UTC as 1st comment
Total: 33, showing: 1 – 20
« First‹ Previous12Next ›Last »