Joined on Jul 12, 2018


Total: 29, showing: 1 – 20
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In reply to:

Pierre Louis: I wonder which manufacturer will be the first to put an oversized, multi-aspect ratio SQUARE sensor in their camera! (and square viewfinder LCD to match). This is the #1 new feature I'd like to see in a camera!

Imagine taking portraits or vertical video while comfortably holding your camera HORIZONTALLY! No need for a bulky, extra $ vertical grip! You would just select your vertical aspect ratio in the menu and voilá! Vertical shooting while holding your camera horizontally.

Another benefit would be the ability to film 1:1 video and reframe in post (ex: film 3840x3840 and frame a 4K (3840x2160) crop within it)!

Finally, it could allow horizon locking (à la GoPro 9 or Insta360 Go 2)

Could DPReview PLEASE do an article about this to encourage traditional camera manufacturers to finally innovate again the way Insta360 has been innovating with their Go 2 and GoPro with their horizon locking GoPro 9 (when used with wide angle lens mod)?


This article agrees with you and discusses the advantages of a square sensor. Remember that with a square sensor, you can crop to rectangular, but never have to rotate the camera. Yay!

Link | Posted on May 29, 2021 at 17:28 UTC
On article Why are modern 50mm lenses so damned complicated? (923 comments in total)

I love Roger's articles, including this one. But I want to comment on new fast and heavy lenses.
1. I don't understand where one would use an aperture which has such shallow depth of field. f1.2 focused on the eye has too shallow a DOF to capture the nose in focus.
2. Weight is hugely important to me. My heaviest lenses are rarely used because I hate lugging the weight.
3. I think most would agree that these fast, heavy, expensive lenses appeal to a small market and thus I'm puzzled that the manufacturers bother to develop and make them. Are they just competing for prestige?
4. My personal response when lenses like these are announced is annoyance. I ask, "Why are they making things that I have no use for?"

Link | Posted on May 10, 2021 at 06:23 UTC as 123rd comment | 9 replies
On article Tamron 17-70 F2.8 Di III-A VC RXD field review (200 comments in total)
In reply to:

amitava bhowmik: Still waiting for one, for the Nikon Z 50! Quit teasing @Tamron! :(

I bought my A6400 with the 18-135 kit lens. Since then I've added many more lenses, prime and zoom. But my most-used lens remains the 18-135. It has very good image quality, is light weight, and semi-macro. Highly recommended.

Link | Posted on Feb 17, 2021 at 08:27 UTC

Dear Roger,

I love it that you are giving us the benefit of your technical expertise. Thank you. I need your help as explained below.

There are terms "depth of field" which refers to the scene, and "depth of focus" which refers to the film or sensor. Is this translatable to "field curvature"? Does it refer to the scene? Or does it refer to the sensor?

If there is curvature of the focused region of the scene, it seems unlikely to be of concern except for copy lenses. I say that because if a photographer shoots at large apertures he focuses on the subject he wants sharp and wants the rest soft. And if he wants the entire scene sharp, he stops down, where field curvature usually is low.

But if there is curvature on the sensor side of the lens, that hurts and may prevent shots which are sharp over the entire frame, like landscapes or astro photos.

I look forward to your answer.

Link | Posted on Jan 12, 2021 at 18:53 UTC as 16th comment | 2 replies

I shoot birds with my Sony A6400 and 400mm or 350mm lenses at f11. ISO is usually about 200. I like f11 for the DOF.

f11 is also my most-used aperture for regular photography with 20-100mm lenses, again for the DOF. My keeper rate increased greatly when I learned to set my mode wheel at A (aperture) rather that Auto, which favors too large an aperture and thus too shallow DOF.

Link | Posted on Nov 26, 2020 at 18:58 UTC as 52nd comment | 8 replies

I'd love to see test data presented like frequency response curves. Y axis = contrast, X axis = spatial frequency. Then graph for center mid frame and edge. Of course at different apertures.

Much of the lens tests published these days are response on a given camera. I'd like to see it it the format above, but analysis of the aerial image.

I've offered to write for free too. But DPR has never responded to my offers.
Alan Adler, inventor of Aerobie, AeroPress, etc.

Link | Posted on Oct 19, 2020 at 03:22 UTC as 81st comment
In reply to:

janHalasa: Looks like a nice camera. Maybe they could fit it with a Bayer matrix sensor in the next iteration ;-)

I see several negatives about the X-trans sensor. The articles on the subject that I've read say that there's not much difference. But here's flat objection. Tell us more about why you prefer Bayer over X-trans.

Link | Posted on Oct 16, 2020 at 02:09 UTC
On article Opinion: Camera names are getting ridiculous (706 comments in total)

Sony's computer doesn't recognize the names we all use. Their query form refused to recognize A6400 and thus wouldn't accept a query. Later I learned that I should have typed ILCE-6400.

I find it confusing that lower numbers sometimes mean higher end, as in R5 being better than R6. While other manufacturers are opposite and higher numbers are better.

The names that tire me are from Olympus. OM-D E-M5 MARK III just wears me out. By the time I learn it, they'll be on to another iteration, or sell the company.

What I wish for is extremely short names which tell us about the camera, such as
a letter which designates sensor size. Perhaps another letter which tells if the camera takes interchangeable lenses by designating the mount name. Then finally a number (one or two digits) for the model series. And please drop the hyphens.
So AE64 might tell me that this is an APS-C camera with E mount and the model is 64.


Link | Posted on Oct 11, 2020 at 15:49 UTC as 259th comment | 2 replies
In reply to:

Peter1976: Nice, thanks! Just a tip for watches. Watch your lighting, because some reflections make the clock face look dull/matte like in the one in the article.

I use a flash on my camera and tilt the watch slightly away. For the example, I duplicated the author's 65 degree angle between the watch face and the line of sight. But I prefer about 80 degrees to show the watch better. Of course that also reduces the required depth of field.

Link | Posted on Sep 28, 2020 at 19:01 UTC

I shot the watch and the key at f18 using the 18-135 kit lens which came with my Sony A6400. No stacking was necessary to surpass the quality of the stacked images.

The comparison images are here:

Link | Posted on Sep 28, 2020 at 03:37 UTC as 7th comment
In reply to:

Coomer: No update to the focus motor, no stabilzation and no full proper weather sealing is downright lazy. Fuji unfortunately are adamant to not update that now 10 year old lens system. I guess theyre busy saving all that for the next updated x100 for next year.

I think a waist-level screen is best for street photography because it's less obvious that you're taking pics. Holding a viewfinder up to your eye shouts "I'm taking your picture" and makes people unhappy.

Link | Posted on Jun 14, 2020 at 08:11 UTC
On article 12 Things Not To Do When Buying Your First Film Camera (236 comments in total)

Nobody who reads this site has yet to buy his first camera. Why waste space when there is zero audience?

Link | Posted on May 30, 2020 at 03:49 UTC as 52nd comment | 2 replies

My best street photography was with an SLR and 500mm lens. I was far enough away so that most people didn't notice me.

Also, I find it hard to warm to expensive cameras that don't have interchangeable lenses. Some might argue that they are lighter. But my A6400 with a 16-50mm zoom is about 100g lighter than this Fuji.

Link | Posted on Mar 31, 2020 at 03:19 UTC as 22nd comment | 2 replies

I was impressed by the 32 megapixels. But as shown in "5 Image Quality - Studio Scene", the M6 is VERY fuzzy compared to ALL the cameras that it's compared to in this review. This is despite it's having by far the most pixels. Perhaps DPR erred in producing the Studio Scene image.

Link | Posted on Dec 11, 2019 at 03:35 UTC as 57th comment | 1 reply

I was a semi-professional landscape photographer with a 4x5 view camera. I loved the process of spending a long time making the exposure and even longer in my darkroom making the print. But the two B&W examples (LBJ and Olympic Medalist) are so soft that any smartphone can out-do them.

Link | Posted on Nov 16, 2019 at 06:15 UTC as 63rd comment | 4 replies
On a photo in the Nikon Z 58mm F0.95 S Noct sample photos sample gallery (15 comments in total)

Eye focused while tip of nose is blurry because depth of focus is too shallow for human face.

Link | Posted on Oct 25, 2019 at 22:06 UTC as 11th comment | 2 replies
On a photo in the Nikon Z 58mm F0.95 S Noct sample photos sample gallery (14 comments in total)

Again, eye focused while tip of nose is blurry because depth of focus is too shallow for human face, even this petite face.

Link | Posted on Oct 25, 2019 at 22:04 UTC as 3rd comment | 4 replies
On a photo in the Nikon Z 58mm F0.95 S Noct sample photos sample gallery (2 comments in total)

Zoom to 100%. The eye is focused while the tip of the nose is blurry. That's because the depth of focus is too shallow for a human face.

Link | Posted on Oct 25, 2019 at 21:53 UTC as 1st comment | 1 reply
In reply to:

Edmond Leung: I am wondering why the performance of EVF for all MILC is still far behind the EVF for professional cine cameras (like ARRI). The technology is already there.... we are willing to pay more if you can make the EVF like those professional cine cameras.

The Nikon spokesman said they listen to the voices of their customers. Is that true? How can I email him?

Link | Posted on Mar 26, 2019 at 04:04 UTC
On article Leica Q2: What you need to know (367 comments in total)
In reply to:

AeroPhotographer: I try to imagine who wants a 47mp sensor camera with a fixed wide angle lens. I doubt that a pro wants it. So that leaves amateurs who will snap candids of friends and family and possibly some "street photography". Then they'll post the pics on social media and email them.

But pics viewed on screens look the same whether they were shot on this 47mp full frame sensor, or a smartphone. And they already own the smartphone which is easier to pocket. So after a "honeymoon" the Leica will stay at home, and the smartphone will take over.

I used to shoot 4x5 and sell my work in galleries. So I care about quality. But now I find myself and my friends sharing pics on forums like this and emailing to friends. Our work looks pretty much the same on a screen, regardless of how tiny our sensor. That's behind this post. 47mp seems wasted on a portable camera.

Link | Posted on Mar 12, 2019 at 03:33 UTC
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