whyukon

whyukon

Lives in Canada Yukon Territory, Canada
Joined on Aug 13, 2011

Comments

Total: 10, showing: 1 – 10
On What is equivalence and why should I care? article (2004 comments in total)
In reply to:

Sven44: It's refreshing to see more and more people on this thread "getting it", and fewer and fewer coming out with rubbish like "f2=f2=f2".

One last time:

Bob shoots with a Panalympus (2x 'crop factor') with a 28mm lens at f/1.8, 1/60s at ISO 400

AND HIS PICTURES ARE DAMN NEAR IDENTICAL TO

John's 'full frame' 35mm camera with a 56mm lens shot at f/3.6, 1/60s at ISO 1600.

Same FOV. Same DOF. Same brightness of image. Same noise even - notice how Bob's shot was at ISO 400, but his sensor is smaller so intrinsically noisier - meanwhile John cranked up to ISO 1600 because he used a slower aperture.

The difference then? Bob's camera, and especially his wide angle lenses, are smaller. Hurrah for Bob! But sadly, his lens is slower (it's labelled 1.8 but shoots just like f/3.6), while John's lens really does open up to 1.8 to give him more blurred backgrounds and cleaner images at ISO 400. Hurrah for John!

Take your pick, then take lots of pics! :-)

LaFonte,you are correct, Bob's lens is not slower, as far as the words, "fast" and "slow" are commonly used.
Bob's lens does let less total light in. As stated, the f-number is actually a ratio of the focal length to the aperture diameter. Because John's camera has a larger sensor, more TOTAL light is needed to produce the same exposure. However, the intensity of the light (per square area) does not need to be greater. In order to get more light in to cover the larger sensor, John's lens requires a larger actual physical diameter to produce the same f-number. However, both Bob and John's lens are equally fast (light per square area) at the same f-number.

Direct link | Posted on Jul 10, 2014 at 00:20 UTC

DXO Optics Pro has released their lens correction module for this lens.

Direct link | Posted on Nov 8, 2012 at 03:45 UTC as 9th comment
On DxO Labs announces Optics Pro 7 with faster performance article (167 comments in total)
In reply to:

whyukon: I have downloaded and paid for the Version 7 upgrade. Yes, version 7 is faster and does have a simpler and more flexible workflow. Good work on that!

However, one thing I cannot find: On version 6.6 there is a menu item under "File" for "Project Database" and then "Import V5 database". There doesn't seem to be a similar menu item in version 7 to import a version 6 database. How does one import his version 6 projects into version 7?

I'll answer my own question. I should have checked the release notes, which indicate that the conversion tool for version 6 project database is not available yet. Any idea when this feature will be available?

Direct link | Posted on Nov 30, 2011 at 22:58 UTC
On DxO Labs announces Optics Pro 7 with faster performance article (167 comments in total)

I have downloaded and paid for the Version 7 upgrade. Yes, version 7 is faster and does have a simpler and more flexible workflow. Good work on that!

However, one thing I cannot find: On version 6.6 there is a menu item under "File" for "Project Database" and then "Import V5 database". There doesn't seem to be a similar menu item in version 7 to import a version 6 database. How does one import his version 6 projects into version 7?

Direct link | Posted on Nov 30, 2011 at 22:34 UTC as 8th comment | 2 replies
On DxO Labs announces Optics Pro 7 with faster performance article (167 comments in total)

I don't know whether this question has been asked or answered already:
Will the support for new cameras that is forthcoming with version 7 also become available in older verions? For example, since I currently have version 6.6, will the module for the Fuji X10 that is supposed to come in December, work in version 6.6, or MUST I upgrade to version 7 in order to get the support (modules) for this and other new cameras (and lenses)?

Direct link | Posted on Nov 30, 2011 at 02:16 UTC as 13th comment | 1 reply
On Fujifilm releases X-S1 premium EXR 26X superzoom article (383 comments in total)
In reply to:

ericsan: Such a big camera with such a small sensor (even twice bigger than the average compact cameras) will NEVER deliver good IQ !! Fuji should have put a larger sensor such as the one in the X100 to offer DECENT IQ...this new product is a complete joke !!

The Fuji X100 has an APS-C sized sensor. If Fuji were to have put an APS-C sensor in the XS-1, then the lens would have to be correspondingly large. Just how big (and expensive) would a 624 mm equivalent zoom lens be for an APS-C sensor? Such a zoom (24-624 mm) does not exist in the APS-C sensor world... it would be monstrously large and heavy and expensive and technically very difficult to design.

Direct link | Posted on Nov 29, 2011 at 17:01 UTC
On DxO Labs announces Optics Pro 7 with faster performance article (167 comments in total)
In reply to:

whyukon: Is support planned for the Olympus Pen E-PM1 (and its 14-42mm kit lens)? I have been using DXO for my Canon DSLR, but now need support for the Pen Mini as well. There is a sale on Lightroom 3 right now, but I'd prefer to stick with DXO if possible.

Terrific! Thanks. That makes it an easier decision whether to upgrade.

Direct link | Posted on Nov 24, 2011 at 00:47 UTC
On DxO Labs announces Optics Pro 7 with faster performance article (167 comments in total)
In reply to:

gabidan: It's one of the first times I am lucky: I checked with DxO sales support at the beginning of August whether Optics Pro v7 will be released any time soon (as I have quit a luck of buying software just before release of a new version). No news at that time.
I liked the software so much that I couldn't wait for another sales promotion and bought v6.6 on 5th September (together with film pack expert edition). Luckily it is still in the period when I am entitled for a free upgrade ...
Wow, it would be unlucky to buy it few days earlier :-)

I really look forward for the new version, especially for higher speed, new quality and possibility to work without the project (I guess with the sidecar files, and I imagine maybe like in the Canon DPP - just opening the image and making adjustments).

Merci!

Good timing... I bought in June and I guess I'll be paying the upgrade price, if I want the new version. However, I'm a bit disappointed at the slow release of support for many cameras and lenses compared with Adobe Lightroom. I believe that DXO is more thorough and thus can produce better results, but if the support isn't there at all....

Direct link | Posted on Nov 23, 2011 at 23:53 UTC
On DxO Labs announces Optics Pro 7 with faster performance article (167 comments in total)

Is support planned for the Olympus Pen E-PM1 (and its 14-42mm kit lens)? I have been using DXO for my Canon DSLR, but now need support for the Pen Mini as well. There is a sale on Lightroom 3 right now, but I'd prefer to stick with DXO if possible.

Direct link | Posted on Nov 23, 2011 at 21:09 UTC as 41st comment | 2 replies
On Fuji X10 : a Hate & Love affair article (57 comments in total)

"I have used hundreds of cameras over my 25 years as a photographer and I cannot remember one where the zoom would be in that direction."

hmmmmmm. I wonder which "hundreds of cameras" those were. I have a Canon DSLR with a kit lens that zooms one direction, and a Tamron telephoto and a Sigma wide-angle that both zoom in the opposite direction to the Canon lens. There is no "standard" for either the focusing nor the zoom direction of rotation.

The reviewer seems to believe that the controls of all cameras should be the same as his Ricohs, and if the controls are not the same, then the camera is seriously flawed. I have not tried the Fuji X10 myself, so I cannot comment on how well the controls do or do not work, but the author does seem to have a bit of a bias, in my opinion.

Direct link | Posted on Nov 15, 2011 at 17:51 UTC as 21st comment
Total: 10, showing: 1 – 10