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Forum: Optics Theory - 1 Week Ago
Replies: 52
Views: 1,529
Posted By mrmeadows
@tvdpid Merklinger first describes how lenses...

@tvdpid

Merklinger first describes how lenses work, how circles-of-confusion arise and how those circles affect DOF. Then he presents a second way of thinking about the situation and these same...
Forum: Optics Theory - 1 Week Ago
Replies: 52
Views: 1,529
Posted By mrmeadows
Merklinger's book is an excellent exposition of...

Merklinger's book is an excellent exposition of its subject, but it is not true that DOF is all fixed at the time of exposure by 1) focal length; 2) f-stop; 3) focus distance. If you read again the...
Forum: Photography General Interest 05-17-2016
Replies: 6
Views: 566
Posted By mrmeadows
Willie_901: Thanks for the discussion and the...

Willie_901:

Thanks for the discussion and the links.

I believe that I was unclear when I speculated in my first posting about the "overall goal" of a color sensor. My meaning of "overall goal" is...
Forum: Photography General Interest 05-15-2016
Replies: 6
Views: 566
Posted By mrmeadows
Willie_901: Previously, I wrote: "... and the...

Willie_901:

Previously, I wrote: "... and the CM's blue response will raised relative to the red and green by the intrinsic response of the diodes."

Oops. That can't be true. The intrinsic diode...
Forum: Photography General Interest 05-15-2016
Replies: 6
Views: 566
Posted By mrmeadows
Willie_901: Very interesting article. Thanks for...

Willie_901:

Very interesting article. Thanks for the link.

I've not previously read about CMs, but the article prompts a question that I've not found an easy answer to but which you may be able to...
Forum: Leica Q / T / X Series 04-20-2016
Replies: 41
Views: 1,758
Posted By mrmeadows
Klaus: You said: "If you photograph a box of...

Klaus:

You said: "If you photograph a box of matches that sits diagonal in the perfect DOF so that the front and back corner of the box will be tack sharp and matches spilled in the foreground and a...
Forum: Leica Q / T / X Series 04-19-2016
Replies: 41
Views: 1,758
Posted By mrmeadows
Here we go yet again ... another confused thread...

Here we go yet again ... another confused thread regarding depth of field (DOF). What's a person to think about these apparently contradictory comments?

The OP has asked: "...what happens to DOF if...
Forum: Bill Pierce - Leica M photog and author 01-04-2016
Replies: 17
Views: 1,691
Posted By mrmeadows
Bill, The effect of too much shadow detail would...

Bill,

The effect of too much shadow detail would seem to be related to the linear gamma that digital sensors produce. I wonder if an alternative method of suppressing that detail to get a more...
Forum: Bill Pierce - Leica M photog and author 12-13-2015
Replies: 16
Views: 1,632
Posted By mrmeadows
It's very true, as Bill says, that the quality of...

It's very true, as Bill says, that the quality of the photos in photo books is one of their great attractions. Commercially oriented publishers can be very good curators, so their photo books tend...
Forum: Digital M Reported Problems - all Models 12-11-2015
Replies: 11
Views: 1,538
Posted By mrmeadows
Lucas: I see what you mean about the banding...

Lucas:

I see what you mean about the banding which you earlier mentioned to me by email. I find it curious that in each banded photo, the bottom 1/6 seems not to be banded. That must mean...
Forum: Bill Pierce - Leica M photog and author 10-25-2015
Replies: 4
Views: 1,292
Posted By mrmeadows
Bill: I use PhotoShelter.com for the portfolio...

Bill:

I use PhotoShelter.com for the portfolio and archive part of my web presence. That service is not too expensive, and has several ways to easily upload and organize photos. It also can be set...
Forum: Leica General Discussion / News / Rumors 10-15-2015
Replies: 5
Views: 893
Posted By mrmeadows
Both translations of this patent into English...

Both translations of this patent into English seem to have been done by Google rather than a compentent patent translator. But, reading them, it appears to me that Leica is patenting a fast (real...
Forum: Leica M8 / M8.2 / Ricoh GXR 09-12-2015
Replies: 21
Views: 2,106
Posted By mrmeadows
jpegs always have artifacts that degrade the IQ ...

jpegs always have artifacts that degrade the IQ

--- Mike
Forum: Leica M240 aka Leica M10, M-P, M60 08-25-2015
Replies: 23
Views: 1,391
Posted By mrmeadows
the long power cord is the aspect of the Leica...

the long power cord is the aspect of the Leica charger that I dislike. but there are adapters that will eliminate the long power cord and turn the Leica charger into a wall mount for wall sockets in...
Forum: Optics Theory - 03-07-2015
Replies: 46
Views: 8,022
Posted By mrmeadows
That's a lot of tedious work that the OP has done...

That's a lot of tedious work that the OP has done for us in making these comparison images. Thanks for all that work.

I believe, however, that the Singapore comparison shots show a subject which...
Forum: Leica M9 / ME 10-03-2014
Replies: 7
Views: 900
Posted By mrmeadows
focusing long lenses with LCDs and EVFs

I recently broke down and purchased a Leica M(240). As others have related, I justified the considerable expense by telling myself that my (well used) cameras are my only extravagance and that life...
Forum: Bill Pierce - Leica M photog and author 09-12-2014
Replies: 22
Views: 2,688
Posted By mrmeadows
Thanks, semilog. I hope others also found the...

Thanks, semilog. I hope others also found the post interesting.

There's no size sensor that won't show pixels at great-enough enlargement and/or very close inspection. For example, it turns out...
Forum: Bill Pierce - Leica M photog and author 09-10-2014
Replies: 22
Views: 2,688
Posted By mrmeadows
I think that Bill's arithmetic is applicable only...

I think that Bill's arithmetic is applicable only to enlargements of photographs of test charts and even then only under unusually close inspection. From a practical point of view, the situation is...
Forum: Bill Pierce - Leica M photog and author 03-01-2014
Replies: 25
Views: 3,443
Posted By mrmeadows
[quote=malland;2310559] I don't know anything...

[quote=malland;2310559]
I don't know anything about the color rendition of the Fuji X-Pro. When the Fuji X-Pro first came out I looked at its hybrid viewfinder and found that I could see clearly...
Forum: Bill Pierce - Leica M photog and author 01-04-2014
Replies: 26
Views: 3,334
Posted By mrmeadows
Smartphone cameras have clearly improved...

Smartphone cameras have clearly improved enormously in recent iterations and clearly provide quite good photographs for some purposes. The author's data clearly show this, but he is drawing spurious...
Forum: Technique: How To Shoot It 12-09-2013
Replies: 30
Views: 2,824
Posted By mrmeadows
Double glove/mitten is the way for me to go,...

Double glove/mitten is the way for me to go, becauseI want to feel the controls and be able to do virtually anything I could do with bare hands, so I prefer to wear these very thin...
Forum: Photo Accessories / Bags/ Meters / Tripods etc 12-05-2013
Replies: 8
Views: 1,762
Posted By mrmeadows
This bag seems a bit large for your planned use. ...

This bag seems a bit large for your planned use. Worse, it apparently doesn't have any provision for adjustable internal dividers to keep gear from banging into each other.

I travel a bit like...
Forum: Bill Pierce - Leica M photog and author 11-14-2013
Replies: 18
Views: 2,801
Posted By mrmeadows
The price of the digital M Leicas is, of course,...

The price of the digital M Leicas is, of course, the elephant in the room. I like Leicas, I have both film Ms and digital M8s, and I have an (irrational?) emotional attachment to them after so many...
Forum: Business / Philosophy of Photography 10-10-2013
Replies: 28
Views: 4,008
Posted By mrmeadows
Turtle: While you, the OP and I see something...

Turtle:

While you, the OP and I see something dramatically new in Genesis, some critics/reviewers have negatively asserted that Salgado had nothing new to show us as compared to others who got the...
Forum: Bill Pierce - Leica M photog and author 09-27-2013
Replies: 36
Views: 4,842
Posted By mrmeadows
Bill: Thanks very much for the link to the Epson...

Bill:

Thanks very much for the link to the Epson page. The articles there contain just the sort of information that I'd hoped someone would point me to in response to my previous questions in this...
Forum: Rangefinder Photography Discussion 09-24-2013
Replies: 81
Views: 4,597
Posted By mrmeadows
Dear Roger: As I think about it further, another...

Dear Roger:

As I think about it further, another of Mencken's insights seems right up your alley:

"Mankind shall not be free, until the last lawyer is hanged by the entrails of the last priest."

...
Forum: Rangefinder Photography Discussion 09-24-2013
Replies: 81
Views: 4,597
Posted By mrmeadows
Dear Roger: Takes all kinds to make an...

Dear Roger:

Takes all kinds to make an interesting world. You, at least, have good taste in messages. Enjoy.

I more often see examples which tend to prove that
"Nobody ever went broke...
Forum: Rangefinder Photography Discussion 09-24-2013
Replies: 81
Views: 4,597
Posted By mrmeadows
I agree with the opinion that any stealth resides...

I agree with the opinion that any stealth resides in a photographer's behavior, not his/her equipment. However, there's another rationale for taping up a camera. The reason that I always tape the...
Forum: Bill Pierce - Leica M photog and author 09-20-2013
Replies: 36
Views: 4,842
Posted By mrmeadows
My goal for B&W conversions is to adjust each...

My goal for B&W conversions is to adjust each photo to make it "look right" according to my intentions and my judgement, rather than to emulate the look of any particular film. My approach is...
Forum: Fuji X Lenses & Images 09-03-2013
Replies: 36
Views: 6,547
Posted By mrmeadows
Any focus scale is always welcome on a lens. ...

Any focus scale is always welcome on a lens. From looking at the photos, however, this one may not turn out to be as useful as such scales are on older manual-focus lenses. That's because the f#...
Forum: Bill Pierce - Leica M photog and author 08-30-2013
Replies: 21
Views: 2,055
Posted By mrmeadows
a point of view on color

We see color. Always. (Unless the light is very dim.) In our daily lives, we mostly "look past" color and composition and concentrate instead on content and meaning. When we look at photos or at...
Forum: Bill Pierce - Leica M photog and author 07-26-2013
Replies: 2
Views: 845
Posted By mrmeadows
your photos don't matter much, just bring your followers

The article below, from BJP, seems to surface a new theory for the relationship between NGOs and the photographers that they will hire. Will others follow this...
Forum: Bill Pierce - Leica M photog and author 07-16-2013
Replies: 4
©
Views: 985
Posted By mrmeadows
BBC is reporting today on a new attack on web...

BBC is reporting today on a new attack on web sites that support expropriation of copyrighted material. We can hope that this is an opening salvo in using the market to deny $,£,€,¥ and thereby...
Forum: Tom Abrahamsson of RapidWinder.com 07-08-2013
Replies: 4
Views: 2,311
Posted By mrmeadows
some help for eyeglass wearers using RFs

People who shoot RFs while wearing glasses can do at least two things to improve their view through any viewfinder, and that constitute alternative to contact lenses. (People who are significantly...
Forum: Bill Pierce - Leica M photog and author 07-02-2013
Replies: 47
Views: 2,834
Posted By mrmeadows
"f/8 and be there." Quit...

"f/8 and be there." Quit thinking/reading/talking/obsessing about gear and technique. Get out there and take/make photos. Good photos result from something like 30% subject/action, 20% light, 25%...
Forum: Fuji X-Pro Series 01-15-2013
Replies: 4
Views: 1,654
Posted By mrmeadows
I've now found information regarding the...

I've now found information regarding the questions that I originally posted. Since I've received no posted answers, this information is evidently not very well-known, so I am now posting the...
Forum: Fuji X-Pro Series 01-14-2013
Replies: 4
Views: 1,654
Posted By mrmeadows
18-55mm zoom with X-Pro1

In your experience ... How does the Fuji 18-55mm zoom operate together with the OVF on the X-Pro1? In particular, how do the frame lines and the viewfinder magnification change as one changes the...
Forum: Bill Pierce - Leica M photog and author 12-04-2012
Replies: 37
Views: 4,400
Posted By mrmeadows
Certainly entitled to keep trade secrets, but...

Certainly entitled to keep trade secrets, but that route may not coincide with business interests. Licenses and NDAs are how companies usually serve both interests, and Fuji easily can go this...
Forum: Bill Pierce - Leica M photog and author 06-29-2012
Replies: 40
Views: 7,829
Posted By mrmeadows
I guess I've here-to-fore rejected the GXR-M, in...

I guess I've here-to-fore rejected the GXR-M, in large part because the viewfinder is an extra box sitting atop the body which seems a bit kludgy. But following your favorable description and Bill's...
Forum: Bill Pierce - Leica M photog and author 06-29-2012
Replies: 40
Views: 7,829
Posted By mrmeadows
adopting a wait-and-see approach

I became disenchanted with DSLRs for the street/travel/documentation photos I seek to take while traveling in Turkey in 2007. Even today, the DSLR bodies and zoom lenses are nothing short of obese,...
Forum: Bill Pierce - Leica M photog and author 06-21-2012
Replies: 23
Views: 4,555
Posted By mrmeadows
The "Articles" and "Interviews" posts on PJLinks...

The "Articles" and "Interviews" posts on PJLinks do reference much old work, whether color or BW. New work is mostly found in the "Features and Essays" posts, and there one will find that nearly...
Forum: Bill Pierce - Leica M photog and author 06-17-2012
Replies: 23
Views: 4,555
Posted By mrmeadows
Anecdotal evidence drawn from local newspapers...

Anecdotal evidence drawn from local newspapers will, no doubt, lead to a strong suspicion that B/W photojournalism is all but dead. Hard news does seem to almost always run with color photos,...
Forum: Bill Pierce - Leica M photog and author 06-12-2012
Replies: 23
Views: 3,565
Posted By mrmeadows
I don't yet have personal experience with any...

I don't yet have personal experience with any mirrorless camera system. I'm game to try this type but am uncertain whether any can satisfy some of my preferences. Examples: Do any of them have...
Forum: Bill Pierce - Leica M photog and author 05-28-2012
Replies: 22
Views: 2,847
Posted By mrmeadows
an idea for backing up photos - good idea?

Is it a good idea to back up my photos at the service I pay to host my website and blog?

Here's the way I envision implementing this scheme. I use Lightroom for post processing. I've been backing...
Forum: Bill Pierce - Leica M photog and author 09-07-2011
Replies: 10
Views: 2,164
Posted By mrmeadows
I am very grateful for all the responses,...

I am very grateful for all the responses, answers, comments and links that have been offered to my questions. All have been very much to the point and very helpful, as I had hoped, and I thank you...
Forum: Bill Pierce - Leica M photog and author 09-01-2011
Replies: 10
Views: 2,164
Posted By mrmeadows
Travel Advice: traveling with film; digital backup methods

I'm preparing to set out on 6 weeks of travel during which I expect to make a few 1000 photographs, mostly documentation, street photography and cityscapes. I'll fly from the US to and from...
Forum: Bill Pierce - Leica M photog and author 03-19-2011
Replies: 152
Views: 44,540
Posted By mrmeadows
Bill: I sill get a good laugh each time I...

Bill: I sill get a good laugh each time I remember your column on the Digital Journalist in which you wrote of being a recovering bag addict. That's a classic.

For my part, I learned long ago to...
Forum: Bill Pierce - Leica M photog and author 01-31-2011
Replies: 31
Views: 3,338
Posted By mrmeadows
Isn't it often a whole lot faster to use...

Isn't it often a whole lot faster to use auto-exposure-bracket than to spend time chimping the histogram to avoid blown highlights?

---- Mike
Forum: Bill Pierce - Leica M photog and author 01-19-2011
Replies: 28
Views: 3,770
Posted By mrmeadows
My main metering technique is based on incident...

My main metering technique is based on incident light readings, but it is much faster than fiddling around with the computer dial incorporated into every meter. It also involves a story about...
Forum: Bill Pierce - Leica M photog and author 01-12-2011
Replies: 9
Views: 1,829
Posted By mrmeadows
I think you've put your finger exactly on a...

I think you've put your finger exactly on a modern photographer's conundrum. Shooting for myself in the past, I would decide on a project-by-project basis whether to do color or BW. After shooting,...
Forum: Leica M8 / M8.2 / Ricoh GXR 07-22-2010
Replies: 150
Views: 9,241
Posted By mrmeadows
People who recoil at the cost of a digital M...

People who recoil at the cost of a digital M cannot rationalize their reticence with the argument that film is less expensive. That argument is false, because in the long run THE DIGITAL M WILL BE...
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