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Forum: Pentax K-3 III 1 Day Ago  
Black skies and big cameras (plus a K3iii)
Posted By bobbotron
Replies: 4
Views: 567
I posted a lot of K3iii photos here from a recent trip to the Adirondacks during the eclipse, it was a champ! I thought I'd share my web notebook post here.


Black skies and large cameras in the Adirondacks | RJY Notepad

Forum: Photographic Industry and Professionals 13 Hours Ago  
Did camera industry lost its way?
Posted By greyscale
Replies: 38
Views: 1,050
From Wikipedia:

Betteridge's law of headlines is an adage that states: "Any headline that ends in a question mark can be answered by the word no."

I'll add that discussions about Kids These Days / People Are Doing It Wrong / Why Don't They Just will simply be an echo chamber and can be safely ignored.
Forum: Pentax News and Rumors 18 Hours Ago  
Poll: Do you carry a pocket camera? Best of Pentax Forums April 17 Poll
Posted By UncleVanya
Replies: 38
Views: 1,285
The ergonomics alone make phone use less pleasant than compact camera use in many ways.
Forum: Pentax News and Rumors 1 Day Ago  
Poll: Do you carry a pocket camera? Best of Pentax Forums April 17 Poll
Posted By BigMackCam
Replies: 38
Views: 1,285
Another poll without a suitable option for me, I'm afraid :o

I always have my smartphone with me, so that's my fall-back - but on occasion I might carry my Q7 or original Q, one of several compact fixed-lens digicams - Fujifilm XF1, Canon G10 or A1200, etc. - or a pocketable point-and-shoot 35mm film camera such as the Olympus Trip 35...
Forum: Pentax News and Rumors 2 Days Ago  
Film camera news
Posted By BigMackCam
Replies: 331
Views: 17,260
I've heard rumours that if you play the video backwards, there's a hidden message at the end giving the precise date on which Pentax is doomed...
Forum: Contest Voting 3 Days Ago  
Sticky: Poll: Contest Poll VOTE NOW - Photo Contest #211 Poll (Flowers up Close - March 2024)
Posted By UncleVanya
Replies: 11
Views: 1,871
This one was a killer. Not a boring or hum drum shot in the lot. Several super creative takes and all are stunning.
Forum: Film SLRs and Compact Film Cameras 2 Days Ago  
Pentax ME Super after cleaning artifacts
Posted By Lord Lucan
Replies: 13
Views: 460
It doesn't sound as if the OP is in control of the development process. But you are right, it could be a development problem, and I suggest the OP shoots another roll and gets it developed at a different place.

I must say though, the guy "deciding to clean the mirror" sent shivers down my spine.
Forum: Pentax SLR Lens Discussion 3 Days Ago  
Macro query
Posted By JensE
Replies: 35
Views: 991
The DFA 100 WR is a decent macro lens, the HD DFA 100 AW has an improved optical construction, with better purple fringing resistance, a little less longitudinal chromatic aberrations (LoCA) and the option for a software-based focus limiter in recent Pentax cameras. Compared to the most recent designs, the DFA is however falling behind on LoCA correction, in practice, this is however rarely visible in my macro work. At f/8 to f/11, aberrations are almost vanishing in the blur and other qualities are more important.


Aside from being WR/AW rated, the most important feature to me is a remarkable compactness. The DFA100 WR or AW are - beautifully made - true f/2.8 lenses with a mere 49mm front lens diameter and a very precisely constructed hood, that is basically part of the lens body design and not an afterthought/add-on. At non-macro distances, the tube is well retracted in the hood, extending to just within the hood at 1:1. The retains a great free working distance in combination with optimal protection of the extending lens tube. No other 100mm lens that I'm aware of provides this wide of a free angle for lighting. The other great feature is the very good robustness against stray light/contra light provided by the combination of excellent coatings and interior blackening. That is very handy in difficult lighting situations, which are frequent in macro work, but you find that rarely discussed.

As I'm working mostly at the same magnification (1:1) and apertures, I have little experience with P-TLL. I tend to leave room for reflected highlights and know my required flash power for my most used setups from experience. When I set up "scene lighting", I often start out with P-TTL, but convert to manual (a Godox feature) to eliminate the time consuming pre-flash that leads to a slightly higher shutter lag.

In addition to the HD DFA100AW, I'm using the Laowa 100mm f/2.8 2:1 macro. It's rendering is absolutely lovely, including a good foreground (the thing that I most dislike about the DFA 100s), has great CA correction, but has various handling issues and isn't actually an f/2.8 lens. Except for the hood and a rather large diameter, I also like the Irix 150mm, LoCA not as perfectly corrected as the Laowa, but well ahead of the Pentax DFA 100s. Both come nowhere near in terms of stray/contra-light resistance nor compactness of the DFA100s though.

I'm currently using the HD DFA100 AW in the single-in-challenge. None of my photos so far would show any optical imperfections of the lens. So while I can't answer you specific comparison questions to Canon lenses, to me the HD DFA100mm f/2.8's strengths make it worth keeping to me in addition to the others (same goes for the DFA100WR). They'd likely be different from, say, the ones from your RF macro, so don't expect to find them in the same area.
Forum: Troubleshooting and Beginner Help 2 Days Ago  
Clackers' Beginners Tip 105: Grids for Softboxes
Posted By clackers
Replies: 6
Views: 731
Ahem ... if you'd read the rest of the sentence, CristiC, "reducing its spread and creating a more focused beam, allowing us to create dramatic shadows for mood and depth."

:)
Forum: Pentax K-1 & K-1 II 3 Days Ago  
K1 / K1 II screen resolution?
Posted By mlag
Replies: 8
Views: 559
On the K-3II there is a wrench 2 settings menu ”HDMI out” with default setting auto and options like 1080i as highest and xxxp lower (like480p) settings...., my monitor report 1080i for the auto. I need to adjust the aspect ratio of the monitor to match the camera output better, but that depends on monitor....(I use pc monitor to set menus in camerabody with failed display)


Other alternative: an LCD loupe or viewer, which I use for LV with macro and mirror lenses to nail focus in LV. The loupe includes a lens and ”enhances” viewsize.
But it impedes VF use when mounted. Hence more for tripod use, although I use it also as handheld mirroless style finder. Feels a bit like you are handholding a bigger medium format body (the loupe adds an inch or two) with electronic VF....
So I am handholding this (works well with short size lenses like my manual mirror lenses):
Meike-mk-vf2
Forum: Troubleshooting and Beginner Help 4 Days Ago  
Clackers' Beginners Tip 105: Grids for Softboxes
Posted By clackers
Replies: 6
Views: 731
Good morning all. My wife thinks it's weird that I stare at the window during a downpour.

It would be a lot less weird if she'd just let me in, though.

I can't complain, I had a happy childhood. My dad used to put me in tires and roll me down hills.

Those were Goodyears!

Okay, so this week, I'd like to talk about controlling softboxes.

If your first purchase of a flash modifier was an umbrella (a good choice!), your second may have been some kind of softbox (also a good choice!).

They're great, but they throw light everywhere. The pictures can have even flat illumination, a bit like on a TV sitcom, where if you notice there are almost no shadows. That's because there can be several cameras going at once, and the chief technician ('gafffer') will put lights everywhere so whichever way a camera's located, all the actors and props are lit.

A movie can be shot with a single camera, so the scene can have much more carefully constructed shadows and highlights, and that's what we can do with our still cameras.

A grid looks a bit like a soccer goalpost net and attaches to the front of your softbox, usually with velcro. It consists of a series of black cloth cells that narrow the path of the light, reducing its spread and creating a more focused beam, allowing us to create dramatic shadows for mood and depth. A grid was applied to the strobe and softbox on the right hand side here in this pic taken with my K-1 and the Pentax DFA 50mm f2.8 Macro lens. You can see an ungridded strobe at the left, although it does have 'barn doors' to reduce its own spill.

To finish with, there's the story of the man and his wife awakened in the middle of the night by a loud pounding on the door.

The man gets up and goes to the door where a drunken stranger, standing in the pouring rain, is asking for a push.

'Not a chance,' says the husband, 'It's three o'clock in the morning.' He slams the door and returns to bed.

'Who was that?' asked his wife.

'Just some drunk guy asking for a push,' he answers.

His wife said, 'Can't you remember about three months ago when we broke down on the highway and two guys helped us? I think you should help him, and you should be ashamed of yourself!'

The man sees the error of his ways, gets dressed and goes out into the rain. He calls out into the dark, 'Hello! Are you still there?'

'Yes,' comes back the answer.

'Do you still need a push?' calls out the husband.

'Yes! Please!' comes the reply from the darkness.

'Where are you?' asks the husband.

'Over here on the swing!!' replies the drunk.

Find the rest of the series here: Clackers' Beginners Tips (Collected) - PentaxForums.com

Forum: Troubleshooting and Beginner Help 3 Days Ago  
Sharpness of HD Pentax-DA 15mm F4 ED AL Limited
Posted By UncleVanya
Replies: 16
Views: 933
The greatest strength of the da 15 is excellent contrast and resistance to flare you can make images with the sun in the frame without fear of flare. The SMC version also makes great diffraction spikes.

IMGP8186_DxO by -vanya_42nd-


It also loves infrared unlike many lenses:

DSC00950_DxO by -vanya_42nd-
Forum: Film SLRs and Compact Film Cameras 5 Days Ago  
Post Your Half-Frame Photos
Posted By TwoUptons
Replies: 4
Views: 711
I finally got the first roll done from the Chaika...
72 photos on Fuji 200, developed and scanned at the local lab as diptychs, so 6Mp per pair...
Things to know about the Chaika...
Wide open it is not great... but stopped down a bit, it's not bad... my Canon Dial 35 has a better lens
Focus is really important... and hard to determine... are Soviet meters the same as the regular ones?
When it is set properly, it does quite well, and that lens gives that "old postcard" look..







Other fun facts... the rewind knob is easy to turn the wrong way :hmm:

-Eric
Forum: General Photography 04-11-2024, 06:22 AM  
That Elusive "3D Pop" Defined
Posted By rparmar
Replies: 25
Views: 2,248
This article took a long time to research and write. I might say three decades! I find it's worth diving deep into a contentious topic, if only to gain clarity in my own mind. Hope it's useful for others. That Elusive "3D Pop" Defined is available on my blog. Contains simple explanations of MTF, DOF, and sharpness that will help beginners cut through the technical details. Examples provided from three Pentax lenses.

TL;DR

3D pop is a desirable characteristic of an image where the subject is rendered with a pleasing dimensionality that allows it to be clearly distinguished from its environment. This effect is created by a combination of ideal light, appropriate subject to background distance, and perspective. Furthermore, it requires a lens that is free from optical defects, with high measurements for sharpness and contrast, at least in the part of the frame where the subject is located. Furthermore, a lens that does not perfectly correct field curvature can enhance 3D pop.

Background blur and separation are not the same as 3D pop, though they might enhance the effect. A wide open aperture is not essential and might even be counter-productive. Instead, choose the aperture that most clearly isolates the subject.
Forum: Pentax K-1 & K-1 II 04-10-2024, 10:15 PM  
K-1 and K-1 Mark II firmware update
Posted By tduell
Replies: 14
Views: 1,199
Firmware v2.42 is now available at Support | RICOH IMAGING

Cheers,
Terry
Forum: General Photography 04-10-2024, 08:18 PM  
Why use a real camera?
Posted By sota
Replies: 29
Views: 1,306
This.
The olden day equivalent would be the transition from an "instamatic" type camera (wind, click, and that's it) to your first real controllable camera, where you're having to make decisions. The mental shift causes one to become part of the creative process. You're no longer just "capturing" a moment, but "creating" one.
That's not to say I can't drive my cell phone like I can my "real" cameras (pro mode lets me tweak things in ways that are synonymous with my film cameras), but If I really want to create, i'm grabbing the film rigs.
Forum: Troubleshooting and Beginner Help 01-19-2024, 04:10 PM  
Histogram ??
Posted By Ian Stuart Forsyth
Replies: 16
Views: 752
Probably one of the best videos out there
















Youtu.be






First we really need to know if you are shooting raw or jpg.

If you are shooting raw how the highlights clip can be very camera specific.

Here is a image taken using ETTR so that I am not clipping and capturing the best as to preserve as much data in the dark areas.



If I was to use this as a gauge as to how the image would look one would come up with the idea that there is a lot of clipping


Shot with the pentax K7
But if we look at the raw data as you can see that there is no clipping. As you can see there is a big difference in raw and processed jpg ( what is being displayed in raw converters and what is found on the back of the camera)

Next we have to look at another area that will cause you clipping, the color space



When we look at what just the color space and how it impacts what we think we see there may be no problem with clipping.

I know all this will sound complicated but the biggest take away is that 99% of all histograms out there are only showing you the distribution of your tonal range within a color space of a processed image. Clipping can be introduced along the chain by
How the camera manufacture uses the sensor
The profile used by the manufacture to create color.
The white balance used at the time of capture or at the time of processing
And the very size of the color space selected at the time of processing.
Forum: Mini-Challenges, Games, and Photo Stories 04-10-2024, 05:05 AM  
Just Black and White-ur B/W Monochrome photos here
Posted By pepperberry farm
Replies: 30,371
Views: 2,100,093
apple blossoms

apple blossoms by Pepperberry Farm, on Flickr
Forum: Mini-Challenges, Games, and Photo Stories 04-10-2024, 01:07 AM  
Just Black and White-ur B/W Monochrome photos here
Posted By HoutHans
Replies: 30,371
Views: 2,100,093
Forum: Mini-Challenges, Games, and Photo Stories 04-09-2024, 08:13 PM  
Just Black and White-ur B/W Monochrome photos here
Posted By pepperberry farm
Replies: 30,371
Views: 2,100,093
bluebells by Pepperberry Farm, on Flickr
Forum: General Photography 04-08-2024, 06:25 PM  
Why use a real camera?
Posted By mikesbike
Replies: 29
Views: 1,306
Well, it is folly to overlook the laws of physics. Certainly, the photo quality phones and other miniature devices are capable of has advanced greatly, and will continue to do so. And, they are fine, even advantageous, for some needs including many snapshot situations. If they can take care of all one's needs- fine. I don't even own a smart phone, so the only time I take pictures with one of these is when using someone else's. I don't want a monthly bill for something I rarely use. I rarely use my flip phone, so I grumble about its monthly cost, but at least it does not include another internet connectiveity charge I don't need. When I have used someone's phone to take photos of them, the recipients are often very gratified by the results they get, and that I got these results in such an immediate frame of time. They typically say, looking at the image, something like- "This really looks great!! Thanks a lot! We really appreciate this! My friends often say- "Give Mike the phone and let him take some shots of us- his always turn out so well!" But to me, these shots with their phones are just a matter of immediately recognizing important aspects like background, lighting, frame content (composition), then getting a good angle to omit or include, which I do very quickly. Then, as soon as I see good body attitudes and expressions on faces- I fire instantly! Sometimes I see that everything is especially good, so I frame and fire right away and capture a particularly good moment. That is what that is all about. The device is well-adapted to such occasions and particular need. As to the capture, it's not that I'm special, it's simply their lack of experience.

But there is no way such devices can do some things well or even at all, which are common fare for interchangeable-lens cameras. One example for comparison I can offer is from my recent vsit across the state to attend a grade-school wrestling tournament. My friend there is a teacher and long-time wrestling coach. His two little boys were in the competition, along with the rest of his team. The place was packed, and a mad-house. Sometimes I could get a spot along the sidelines to shoot from, but sometimes I had to settle for a spot a short distance into the stands. My friend, being a coach, could shoot his cell phone from his spot in a corner of the mat. But for framing, sometimes the wrestlers were very near, and sometimes at the opposite corner, etc. His wife, at some distance, was also shooting with her cell phone. Both also included video, so I did not bother with that.

I was shooting with a KP and DA 18-135mm DC WR lens, easily carried in my smaller-mid size holster-type camera case. In a pocket of my cargo slacks I had my compact Pentax AF 360FGZ II flash. When getting ready to shoot, onto the camera went the flash. I was shooting in the Manual mode. Overhead lighting in the sizeable gym was strong enough, but the flash was needed to deal with downward shadows. Often, wrestlers are in a position where faces are turned downward. The cell phones were unable to compensate enough for good results in this matter, while I was quickly able to adjust output for the right degree of fill-flash. The zoom lens was excellent for giving me the framing I wished for each shot. Sometimes I went for close framing of the two wrestlers. Otherwise, I often framed to include some of the onlookers and their expressions to provide content, depicting an action event, as opposed to a practice event. When I could, I'd include team members as well as coaches shouting encouragement. I would also control DOF via aperture so as to slightly blur those in the background, though still fully recognizable, so the wrestlers image stood out better from those in the background. I could also control shutter speed, so rather than totally freezing action, it could be just slow enough to depict some movement, to entail some blur of a hand, leg, or a whole body in motion if I nailed a throw, for instance. Later, I had my friend download my images via a card-reader into his computer. He was delighted with what he received.

---------- Post added 04-08-24 at 06:44 PM ----------



Very nice candids of your kids! Of those lenses, I've long had the 77mm Ltd, a much beloved lens!
Forum: Pentax News and Rumors 04-09-2024, 02:15 AM  
Poll: Do you see a Pentax Half-Frame in your future? Best of PF Newsletter March 6 Poll
Posted By Lord Lucan
Replies: 165
Views: 7,803
No, the genesis of "F8 and be there" is attributed to Weegee, a press crime photographer fl. 1930 -1960 who used a 4x5 Speed Graphic camera that certainly did not have a 35mm lens. He mostly worked at night when crime mostly happens and he used bulb flash. He was able to keep to F8 and a certain shutter speed (and probably focus) because he generally stood around the same distance from the subject, all of which were similar to each other (bodies on the ground, perps under arrest etc). He also needed to work fast. On top of that, B&W film has a lot of lattitude.



I think that is a fallacy, perhaps got from looking at old amateur family photo albums. Cameras and film have been capable of taking sharp low-grain pictures for at least the last 100 years.
Forum: General Photography 04-08-2024, 04:13 PM  
Why use a real camera?
Posted By Rondec
Replies: 29
Views: 1,306
The issue that I have with cell phone cameras is that I have found changing settings to be challenging and ergonomics to be problematic. I don't have a problem taking a few snaps with my phone, although since it is an iphone 8 it is significantly worse than Wheatfield's cell phone image. I think it is fine for you to move into cell phone photography and sell your gear. I will say that there is a difference in the rendering of images from a cell phone lens and a decent ILC lens and I think it shows up in portraiture.

This is shot with the DFA *85:

On a Bridge by Vincent1825, on Flickr

This one was with the DA *55

Victoria by Vincent1825, on Flickr

This with the FA 77 limited.

Elliot by Vincent1825, on Flickr

None of these are posed shots. They are just ones I grabbed as my kids were doing things and so they aren't anything wonderful, but I do think the rendering is above what I see with most cell phone images -- even when they have enable the fake bokeh feature.
Forum: Pentax News and Rumors 04-08-2024, 01:10 PM  
Poll: Do you see a Pentax Half-Frame in your future? Best of PF Newsletter March 6 Poll
Posted By BigMackCam
Replies: 165
Views: 7,803
I shoot both digital and film, and for film I digitise my negatives using a DSLR then convert them in software. So, what's the point of using film?

Well, for one thing it just looks different. The way detail is rendered by film grains / dye clouds, the appearance of those, the tonality - and for colour film, the colour reproduction - from each film stock is very different from the regimented pixel grid, colour-profiled output I get from my digital gear. Of course, you can apply custom profiles, LUTs, curves, grain and other processing to digital photos in an attempt to emulate each film's characteristics - and I sometimes do so with my own digital images - but the result is always at best a vague facsimile... mildly convincing at first glance, but the subterfuge doesn't hold up to scrutiny. In fact, it takes quite a lot of effort to make a digital photo look like film... I mean, really look like it... and then, for me, the question is "What's the point of shooting digital and trying to make it look like film, when you can shoot film in the first place?" :)

Then, there's the whole approach with film photography. You have a fixed ISO for the currently-loaded roll (and development approach), meaning you have to make exposure decisions around that and accept whatever grain characteristics are inherent to the film. When shooting digital, you can vary the ISO setting alongside aperture and shutter speed to take a shot precisely as you want it - but with film, you have to shoot with the fixed ISO speed in mind (to some extent... exposure latitude gives you a lot of wriggle room, admittedly)... so you might have to accept a faster or slower aperture or shutter speed to get the shot - and that can result in images that look quite different to digital where depth of field and/or motion capture are concerned. Plus, of course, there's no screen for chimping / live view / image review, a limited number of shots per roll before the hassle of loading a new one, and the cost aspect of film and developing, so you tend to be more selective and careful (well, I do). Again, you can emulate this by restricting the way you use digital, but I don't know anyone who successfully does so without being tempted to step outside those self-imposed boundaries when the need or desire arises. With film, you can't - and that enforces a different mindset to digital.

Overall, it's just a different experience. Both digital and film will produce great images of the same scenes and subjects, but there are differences in both the approach and final result. Whether that matters or not is down to the individual. Personally, I love shooting film - and for B&W, I love developing it too. It's just a very enjoyable process, and with a sense of anticipation for the final images that I find exciting in a quite different way to digital...
Forum: General Photography 04-08-2024, 01:49 AM  
Why use a real camera?
Posted By Lord Lucan
Replies: 29
Views: 1,306
I don't understand what you mean by "decided to use Pentax" as their choice. Do you mean if Sony etc bought the Pentax brand (something that has been imagined by people before)? And then if Sony were to use it to offer DSLRs alongside their mirrorless? or for a budget line? or for a premium line? Tempted on what grounds?

More specifically, I would never buy anything from Apple because of their leadership role in fighting against the Right to Repair things, and their "throw away and replace" attitude, even to the extent of having remotely downgraded their older phones to encourage new sales. So that answers part of your question although possibly not on the grounds you had in mind.

You have discovered a new Law of Physics there.
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