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Forum: Digital Processing, Software, and Printing 7 Hours Ago  
Lightroom "Classic"
Posted By stevebrot
Replies: 72
Views: 1,494





QuoteQuote:

indefinitely adverb

1. In a manner that is not definite.

ex. "an indefinitely determined fossil"

2. For a long time, with no defined end.
3. Forever.

lit. without definition



In vernacular English the common sense is "without foreseeable end".



This is a common misconception. Tool compatibility for DNG in Adobe product is not fully reliable for other than Adobe-generated DNG and even then backward compatibility depends on how the DNG was made. (DNG is not intrinsically source or backward lenient.) Such is easily demonstrated by attempting to import a Pentax HDR DNG into any version of Lightroom. The exact extent of backward support for various DNG target versions and/or ACR versions is poorly defined and reportedly camera specific. Go figure.

If Ricoh/Pentax continues with DNG 1.2.0.0 as its backward target and also supports the optional embedded profiles, compatibility to most versions of Lightroom should remain good*. Even better would be if compatible camera/lens profiles continue to be available through download or the DNG Converter utility. With any luck, the format for .acp files themselves will remain fairly static and backdoor access to new profiles will continue to be an option.

As for Chicken Little...There are good reasons why many of us have not moved to the subscription and why software as service has been a hard sell for core business tasks for the last 20 years. For many of us, the CC model presents incredibly poor value and inserts unacceptable elements of risk with no strictly defined service level agreement** from Adobe. In two words, "It Sucks".


Steve

* I would have said "excellent" except that the embedded profiles are minimalist extremely simplistic when compared to Adobe-supplied files.

** Having been in the position of building interfaces to consume remote services, test frames to break and monitor such, and applications to provide software as services, the weakness are well known to me. Without a strong use case, this is silliness from the end user perspective.
Forum: Digital Processing, Software, and Printing 8 Hours Ago  
Lightroom Woes
Posted By stevebrot
Replies: 22
Views: 570
The lesson of Sunny 16 is that "accurate exposure" means nothing in the real world.


Steve
Forum: Pentax Film SLR Discussion 11 Hours Ago  
:cool: Lets see those ''film'' shots
Posted By stevebrot
Replies: 16,029
Views: 1,851,580
Smile time! Thanks for sharing these. :D


Steve
Forum: Digital Processing, Software, and Printing 11 Hours Ago  
Lightroom "Classic"
Posted By stevebrot
Replies: 72
Views: 1,494
Those amounts are similar to what I have been putting out for Lightroom purchase. I tend to upgrade every other major version for a cost around $80 USD and a per year cost of about $20.


Steve
Forum: Digital Processing, Software, and Printing 11 Hours Ago  
Lightroom "Classic"
Posted By stevebrot
Replies: 72
Views: 1,494
I shoot film and my ongoing costs per exposure make the the Adobe CC subscriptions look pretty good except that Adobe is not selling processing. They are selling the equivalent of darkroom rental, the means to process, not the processing itself with the twist that they get to control access to your processing notes.


Steve
Forum: General Photography 13 Hours Ago  
IS this the real Pentax website? Does Pentax respond to inquiries?
Posted By stevebrot
Replies: 7
Views: 567
This one...HOME | RICOH IMAGING


Steve
Forum: Pentax K-1 16 Hours Ago  
Flash PC Socket
Posted By stevebrot
Replies: 5
Views: 207
If it was, it is not anymore. I could not source them anywhere except some guy in Britain who has one for 25.95 on eBay there.


Steve
Forum: Welcomes and Introductions 16 Hours Ago  
Second K-1 ordered
Posted By stevebrot
Replies: 14
Views: 319
This is priceless.

To the OP: Welcome to the Pentax Forums! We join you in the sorrow of your loss and hope we can be helpful with your replacement K-1.


Steve
Forum: Pentax K-1 16 Hours Ago  
Flash PC Socket
Posted By stevebrot
Replies: 5
Views: 207
...and it is fairly easy to cross-thread when putting back on. (Mine on the K-3 is getting pretty worn.) A standard connection cap will probably fit and I believe I saw an eBay listing where compatible caps could be purchased a dozen at a time. :p


Steve
Forum: Digital Processing, Software, and Printing 16 Hours Ago  
Lightroom "Classic"
Posted By stevebrot
Replies: 72
Views: 1,494
One can configure so that the Adobe XMP is stored in the RAW, but that still is of extremely limited value unless interpreted by an Adobe product. As for keywords...I believe those are retained in exported images...at least they are in the JPEGs I upload to Flickr.


Steve
Forum: Digital Processing, Software, and Printing 17 Hours Ago  
Lightroom "Classic"
Posted By stevebrot
Replies: 72
Views: 1,494
I may be a pessimist, but I think it is doubtful that the standalone DNG Converter will survive once the move to universal primary cloud storage is accomplished. I suspect that conversion to DNG will be presented as an upload option.



Well! That is cheeky! The majority of current sales may be CC, but that is not the established base, many of whom are poised for new camera purchase in 2018 and who are not interested in spending $240 per year for Classic with mandatory cloud storage that may top 1 TB for many users and who also have little need for Photoshop (the CC value proposition) on a regular basis. The value proposition is very, very, very dubious. The subscription is on the same order as what I might spend on gear updates over a five year period.


Steve
Forum: General Talk 18 Hours Ago  
What is the best drill bit? (Sarcasm )
Posted By stevebrot
Replies: 231
Views: 3,859
Oh, yes...one of the reasons why I wince whenever I think of ripping.

I survived wood shop with only one incident. I was turning a chunk of redwood on the lathe and the wood proved too soft and unbalanced for the setup. I don't know which end suddenly ate through, but the next thing I knew, I was staggering to the side with a bloody divot to my forehead along with a mild concussion. A surgeon applied about 18 stitches (most were internal) in an effort to avoid a sunken scar, but with limited success. I have a nice dent to this day. :D


Steve
Forum: Digital Processing, Software, and Printing 18 Hours Ago  
Lightroom "Classic"
Posted By stevebrot
Replies: 72
Views: 1,494
My upload speed is capped at 0.8 Mb/s with no current option for increase other than (hiss) cable internet. Cloud storage for other than archive backup is not viable. No, Adobe, most of us do not have fiber.


Steve
Forum: Digital Processing, Software, and Printing 18 Hours Ago  
Lightroom "Classic"
Posted By stevebrot
Replies: 72
Views: 1,494
It has been several hours since I read this announcement and I am still seething. I don't seeth except maybe twice per decade and then usually on something political, so this is a big thing for me.

No, ADOBE, this does not work for your established LR user base.


Steve
Forum: General Talk 1 Day Ago  
What is the best drill bit? (Sarcasm )
Posted By stevebrot
Replies: 231
Views: 3,859
That is very sad. The hazards of the joiner were so great that my high school shop teacher would not allow us to use it. :(


Steve
Forum: Troubleshooting and Beginner Help 1 Day Ago  
I want my Spotmatic back!
Posted By stevebrot
Replies: 39
Views: 1,438
I'm glad you got your M42 lenses working on the NEX. Its native metering and exposure flow work well with any lens that can be configured as full-manual aperture.

First...regarding the blinking red light. That indicates that remote shutter activation using a remote release is turned on. To turn it off see page 121 in your manual. Leaving it on is a battery drain.

As for your K-50, using your vintage lenses is very possible and not particularly complicated, though Pentax does throw quirks into the mix. Here are the basics for your camera:
  • Set menu/C4/22 Using Aperture Ring to "Enable". Just set this and forget about it. There is no good reason to have at any setting other than "Enable".

  • Set menu/Rec Mode 4/E-Dial Programming for TAv/M green button to Tv shift. This allows the green button to do something useful with lenses that do not support aperture control by the body (F--- on the LCD)

  • Set AF switch to M

  • Turn Auto-ISO off and use a fixed ISO setting. Auto-ISO does not play well when the body is not able to control the aperture.

With these settings in place, your K-50 will support full manual operation with the option for stop-down metering with vintage K-mount and M42 lenses. If that sounds familiar, it's because that is quite similar to how a Spotmatic works.

First the simple case of full manual operation with a K-mount lens having an aperture ring with no "A" on the dial...
  1. M mode

  2. Confirm manual ISO is at desired setting (do not use Auto-ISO)

  3. Set desired aperture on the lens

  4. Set desired shutter speed using front e-dial

  5. Focus and take the photo

The photo will be taken for the exposure you set, good or not-good.

With an M42 lens mounted...
  1. M mode

  2. Confirm manual ISO is at desired setting (do not use Auto-ISO)

  3. Set desired aperture on lens

  4. Set desired shutter speed using front e-dial

  5. A/M switch on lens in "A" position

  6. Focus

  7. A/M switch on lens to M position to stop down the lens

  8. Take photo

As with the Spotmatic, focus is easier to do with the lens wide open. Working the A/M switch is needed because the K-mount body has no coupling for the stop-down pin on the rear of the lens. Adapted M42 lenses must be stopped down manually for exposure. You can leave the switch in the M position and count clicks to open/close if the switch is too cumbersome.

As with your Spotmatic, your K-50 is capable of stop-down metering.* To use the feature with a K-mount lens having an aperture ring...
  • M mode

  • Auto-ISO off

  • Aperture at desired f-stop

  • Confirm exposure compensation (EC) is set to o (none) or a setting appropriate for the subject

  • Frame the subject and push the green button. The camera should momentarily stop down the lens aperture and adjust the shutter to suit.

  • Focus and take the picture

  • Repeat the last step until either the subject or the light changes.

The above is called "green button stop-down metering". The same works with M42 lenses except that manually stopping down to meter and do exposure are required.

Aperture-priority auto-exposure (Av mode) with M42 lenses. This is a neat trick worth trying...
  1. Av mode**

  2. Auto-ISO off

  3. Aperture wide open

  4. Frame and focus on your subject

  5. Stop the lens down manually to the desired aperture using either the aperture ring or A/M switch. Note that the shutter speed changes to suit the aperture.

  6. Take the photo

Exposure compensation works for this flow too.

The above approaches work for Live View too with a bonus that metering is somewhat more accurate and the options of magnified focus and/or focus peaking are available as aides to manual focus. Live View with an M42 lens in Av mode is very similar to using the same lens on your NEX.

It should be noted that features such as exposure bracketing are often still available with vintage lenses. It pays to experiment.


Steve

* Stop-down metering from the optical viewfinder is not as reliable on modern autofocus dSLRs as on manual focus cameras of the past. The reasons are complex and are related to compromises required by the PDAF focus system. The standard advice is to preview exposure and adjust as needed using aperture, shutter, or exposure compensation.

** The instructions above suggest Av mode because that makes sense. In actuality, all modes except M, X, and B default to Av when body control of aperture is not possible and Av mode is what is recorded in the EXIF metadata for the shot.
Forum: General Talk 1 Day Ago  
What is the best drill bit? (Sarcasm )
Posted By stevebrot
Replies: 231
Views: 3,859
Could have been avoided with a simple firmware fix. Just sayin'...


Steve

(...high school is DOOMED...)
Forum: General Talk 1 Day Ago  
What is the best drill bit? (Sarcasm )
Posted By stevebrot
Replies: 231
Views: 3,859
...am having disturbing flashbacks to organic lab with visions of flaming waste troughs. I kid you not...very, very scary.

As for flaming chunks of sodium metal...that happened in high school. A few textbooks bit the dust.


Steve
Forum: General Talk 1 Day Ago  
What is the best drill bit? (Sarcasm )
Posted By stevebrot
Replies: 231
Views: 3,859
Says the man just a split second before running a finger into the joiner...


Steve
Forum: General Talk 1 Day Ago  
What is the best drill bit? (Sarcasm )
Posted By stevebrot
Replies: 231
Views: 3,859
They should do the decent thing and put the "Stanley" name in some discrete location on the serial number plate and leave the main name and color as they have been.


Steve
Forum: Digital Processing, Software, and Printing 1 Day Ago  
Lightroom Woes
Posted By stevebrot
Replies: 22
Views: 570
Be aware that the JPEG brightness and contrast settings may influence the in-camera histogram. I don't have a K-50 at hand, but know this is the case for my K-3. Again, the histograms for both the camera and Lightroom represent the processed image's brightness distribution. They do not represent the camera's exposure meter reading or the base sensor response.

Yes, I know. This is a bit problematic, particularly if one is doing ETTR or some other histogram-dependent exposure scheme, but that is how it is. The histogram is never based on the RAW sensor response. White/highlight clipping is always a combination the actual exposure plus downstream image processing and quite legitimately so is the histogram.

My practice is to routinely use the "natural" custom image setting for RAW capture. Doing so provides a histogram that is generally representative of the subject as seen by the eye.


Steve
Forum: Digital Processing, Software, and Printing 1 Day Ago  
Lightroom Woes
Posted By stevebrot
Replies: 22
Views: 570
This is pretty much the rule. The in-camera histogram is based on the preview JPEG, which in turn reflects the JPEG image settings. Lightroom's, OTOH, is based on its RAW conversion as modified by the import profile and whatever settings applied in PP.



What import profile are you using? If other than Adobe Standard, you might want to switch to that.



Those profiles only apply to in-camera JPEG, in-camera RAW conversion, in-camera image review (JPEG and RAW), and RAW conversion using the Pentax software that came with your camera. In other words, proprietary Pentax stuff. Lightroom does not have the means to reproduce them for RAW conversion* and simply ignores them.


Steve

* This is generally the case, though Lightroom does have Pentax-provided import profiles that correspond to several of the custom image settings for several cameras. I don't remember if those include the K-30/K-50 models.
Forum: Troubleshooting and Beginner Help 1 Day Ago  
I want my Spotmatic back!
Posted By stevebrot
Replies: 39
Views: 1,438
Center-weighted or straight averaging. The Spotmatic is straight averaging by most accounts, though some feel that there is some center weighting. Published specification are silent. Center-weighted would be close enough for vintage Spotmatic emulation.


Steve
Forum: General Talk 2 Days Ago  
What is the best drill bit? (Sarcasm )
Posted By stevebrot
Replies: 231
Views: 3,859
That, unfortunately, is one of the big drawbacks as chuck size increases; another being that support for shorter shanks is often poor.


Steve
Forum: Digital Processing, Software, and Printing 3 Days Ago  
I'm really impressed with Adobe Lightroom
Posted By stevebrot
Replies: 13
Views: 518
The key is to just do HDR and skip the.....ummm...tone mapping.


Steve
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