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Forum: Pentax KP 24 Minutes Ago  
Moving from K5 to KP after a microwave event :)
Posted By BigMackCam
Replies: 4
Views: 52
Oh my... I've never seen anything like that!

Sad to say, I believe this may be outside of warranty :p

C'mon, Ricoh, it's about time you made our cameras microwave proof! :mad: ... :lol::lol::lol:

Can I ask, did the rice at least come out OK?

Welcome to the forums - looking forward to seeing how you get on with the KP! :)
Forum: Pentax DSLR Discussion 53 Minutes Ago  
The Six-Megapixel Club
Posted By BigMackCam
Replies: 388
Views: 20,485
Lovely light in these, Paul. That second shot is particularly nice... I think many of us would have been tempted to focus on the dog, but having it as part of a gently blurred background for those branches was an excellent choice. One of those shots where no other aperture setting would have worked, as the depth of field / level of blurring is just right :)
Forum: Pentax K-3 21 Hours Ago  
M42 Adapter
Posted By BigMackCam
Replies: 7
Views: 279
I forgot, but I have that one too, and yes - it's very good. Almost identical, in fact, to the Pentax model in fit and finish :)
Forum: General Photography 22 Hours Ago  
A picture is worth a thousand words
Posted By BigMackCam
Replies: 32
Views: 1,007
Like I said, Norm, it's not a requirement for people to post photos - but I agree that it's very helpful if they do. Your example is a pretty extreme (though I'll admit, not uncommon) one, but even in that example, a member is entitled to their opinion. For the guy who claims "Pentax AF sucks", personally I would say "Well, that hasn't been my experience" and move on, rather than saying "You don't know what you're talking about, here's my proof, where's yours?!". If I believe someone is talking baloney, I'd rather end the exchange with that person in a friendly and courteous way, and move on. That's just me. I accept (and embrace) that we're all different :)



Yes, some people have very thin skins, some very thick, and some in-between. I always work on the assumption that someone is thin-skinned, and I word my responses to be constructive, helpful and non-confrontational. I never assume someone is thick-skinned, and I never talk to them that way. Even so, I very occasionally get it wrong and offend someone - but not often. Some people would say I'm treading on egg-shells unnecessarily, but I just see it as courtesy. I do get a little frustrated when I can see someone is blaming their shortcomings on their gear, but hey - most of us were there at one time or another :)



We're all different, I guess. Each member wants something very personal from these forums. Some post lots of photos, some none. You post a lot, whereas I post very few - not because I'm uncomfortable doing so (I have and will continue to post them occasionally), but I'm really not looking for feedback on my photography on a day-to-day basis. I *will* post a photo if it helps in identifying a problem, but I won't usually post one when I express an opinion, and I don't particularly care if others disagree with that opinion (though I'm grateful when I can learn something from constructive and courteous disagreement). Heck, sometimes I'm not even in a position to post a photo without going through my images (some processed and catalogued, others not), but that won't stop me from posting an opinion or advice, and nor should it. Anyone who insists on a photo whenever I ask a question or state an opinion can simply ignore my posts. They don't need to throw down a gauntlet :)



With regard to the bit in bold above, absolutely not, Norm - that's not a requirement or condition of posting here, and that's why it's not in the forum rules. Everyone is entitled to post here within those. You and I can choose not to read or participate in those posts, of course :)

I think we've moved away from the OP's original post somewhat, so I'll leave it there.
Forum: Pentax K-3 23 Hours Ago  
M42 Adapter
Posted By BigMackCam
Replies: 7
Views: 279
A couple of points worth noting:

(1) Some vintage lenses, such as the Helios 44-2, Industar-50-2 and others, don't cover the electrical contacts on the camera's mount, nor do they cover the cut-out areas of the flush-fitting adapters (such as the official Pentax M42 adapter). That allows dust and dirt onto the contacts, but - more importantly - can lead to light leaks and dust ingress through the cut-outs. If I'm using a lens where this is a problem, I'll often choose to use a good quality Kipon flanged adapter (so long as I don't need long-distance focusing).

(2) The original Pentax M42-to-K adapter is great quality, but becoming harder to find, and isn't usually cheap. I have one, but I actually prefer the Kipon version. It's excellent quality, nicely finished, and has an inner flange that protects the SDM contacts inside the camera. This is useful if you're fitting a lens with a long and sharp-ended aperture pin, which can otherwise scratch those SDM contacts when fitting and removing the lens.

My recommendation would be to buy both a flush-fitting AND a flanged adapter (both good quality models such as Kipon)...
Forum: General Photography 1 Day Ago  
A picture is worth a thousand words
Posted By BigMackCam
Replies: 32
Views: 1,007
I hear you. As I said, I agree that a picture can be very helpful indeed, and is usually appreciated - but it's absolutely not a requirement. Sometimes members simply have a question or problem they'd like help with, and a picture just isn't needed, nor are they looking for (or wishing to invite) comments on their photography. People are different in that respect.

One particular dislike I have is when one member states an opinion, and another throws down the gauntlet, denouncing said opinion unless proof is given in the form of a photo. We get that happen fairly regularly around here, and it occasionally has something of a mocking or elitist overtone to it - along the lines of "Hey, I post my photos all the time, so your opinion doesn't count unless you do too". I'm not keen on that, frankly.

So... yes, photos are helpful - but certainly not a condition of posting :)
Forum: General Photography 1 Day Ago  
A picture is worth a thousand words
Posted By BigMackCam
Replies: 32
Views: 1,007
I agree that a photo can be extremely helpful in some posts, but I certainly wouldn't want to discourage people from posting if they don't have what they feel is a suitable photo to share. We all might appreciate a photo to illustrate a point, but we shouldn't expect one. It's a photography site, so any post about photography - with or without a photo - is valid, so long as it satisfies the forum rules :)
Forum: General Talk 1 Day Ago  
The countdown to 4 million!
Posted By BigMackCam
Replies: 17
Views: 595
Congratulations to Adam and all of our forum members for making PentaxForums such a great place to hang out! :)
Forum: Pentax SLR Lens Discussion 1 Day Ago  
No cheap chinese flanged M42 adapters?
Posted By BigMackCam
Replies: 12
Views: 358
Understood, Paolo. So long as you're aware of the limitations, it's a useful adapter to have, for sure.

Although the Kipon adapter is quite expensive, I can recommend it. It's very well finished, fits well with tight tolerances, and the screw for the locking piece doesn't protrude through the threads. That's often a problem with the cheap adapters, and it can damage the threads on your valuable lenses.
Forum: Pentax SLR Lens Discussion 1 Day Ago  
Distortion and character
Posted By BigMackCam
Replies: 10
Views: 388
I absolutely believe that distortion can be part of a lens' character. When shooting my Soviet prime lenses, more often than not I don't correct the relatively minor distortion - I consider it to be part of the signature look from each lens. Of course, there are plenty of exceptions, and for architectural shots or others with very straight lines, I'll correct as necessary :)
Forum: Pentax SLR Lens Discussion 1 Day Ago  
No cheap chinese flanged M42 adapters?
Posted By BigMackCam
Replies: 12
Views: 358
I think you'll be disappointed with this kind of inner-flange adapter. Depending on the individual lens and adapter, you'll generally find the flange is too far back to fully depress the pin, which means the diaphragm won't close down fully and the resulting aperture will be larger than expected. I have the Kipon adapter, and there are only a few lenses I've tried where the flange is effective at pushing the pin in far enough. That said, it's excellent quality and well worth the price. The flange is still useful, as it protects the camera's SDM contacts, which can be helpful when screw-mounting lenses with long aperture pins.

IMHO, you'd be better off doing a reversible modification to the lens, adding an internal sleeve to the aperture pin. There are plenty of resources on the internet to help with this :)
Forum: Pentax SLR Lens Discussion 1 Day Ago  
What would YOU consider a "clinical" image?
Posted By BigMackCam
Replies: 91
Views: 2,330
In fairness, I think you're using the term "clinical" differently to the OP. I completely understand your interpretation, which is one of emotion, and it's undoubtedly valid. But, placing emotions for individual images aside, there are rendering differences (often quite subtle, occasionally not) between lenses of the same focal length that can have appreciable impact on aspects of an image. If I get a chance tomorrow, or in the next couple of days, I'll try to take a couple of shots with my Samyang 85mm f/1.4, Helios 40-2 85mm f/1.5 and Jupiter-9 85mm f/2. They all have quite significant rendering differences. Which is best in specific circumstances is highly subjective, but it will demonstrate how differently three lenses of the same focal length can render the same scene. That's really what people are talking about with the "pixie dust" vs "clinical" descriptions, I believe :)



I guessed correctly on these images. I'm not sure why - it may have been luck, but I don't think so. I believe part of it may be micro-contrast. I like the output from both lenses :)
Forum: Pentax Q 1 Day Ago  
I decided to give the Q one more chance.
Posted By BigMackCam
Replies: 5
Views: 519
It took me some time to warm to the 01, but I used it on a recent vacation (with my Q7) and really enjoyed it.

Barrel distortion is its main issue, IMHO, but obviously that can be dealt with in post. That aside, it's a very nice lens - congrats! :)

EDIT: Oh, and the fast aperture is, of course, a revelation on the Q-series cameras, as you can shoot hand-held indoors or in less-than-ideal light and keep the ISO to sensible levels...
Forum: Pentax SLR Lens Discussion 2 Days Ago  
What would YOU consider a "clinical" image?
Posted By BigMackCam
Replies: 91
Views: 2,330
Like Alex, I respectfully disagree, and repeat my previous point. If you take two otherwise-identical images with different lenses of the same focal length and set to the same aperture, one can look better than the other. That's due to differences in resolution across the frame, contrast, colour reproduction, quality of out-of-focus rendering, aberrations, vignetting, distortion, flare etc. If this weren't the case, there'd really be very little point in having more than one lens at a particular focal length.
Forum: Digital Processing, Software, and Printing 2 Days Ago  
Help me leave Lightroom and explore my fascination with ON1
Posted By BigMackCam
Replies: 36
Views: 1,090
Grant, I must say I really appreciate and enjoy your detailed (and balanced) posts about ON1. I remain to be convinced on its suitability for me personally, but you highlight some excellent and useful information, and your own use of (and support for) ON1 seems to be well thought out. You've also responded helpfully to me on my few posts about it, so - thanks :)
Forum: Digital Processing, Software, and Printing 2 Days Ago  
Help me leave Lightroom and explore my fascination with ON1
Posted By BigMackCam
Replies: 36
Views: 1,090
Which shows, however much I and a (significant?) number of others may resist, Adobe has priced the service quite cleverly :)
Forum: General Talk 2 Days Ago  
What music are you currently listening to?
Posted By BigMackCam
Replies: 3,419
Views: 280,437
I went to a great gig last night... Some friends and I saw Hazel O'Connor at The Sage in Gateshead, not far from my home. She had her break-through when I was just starting to become interested in music, back around 1980. Quite eclectic in terms of musical style, but emerging from the punk and new-wave genres. Frankly, I wasn't all that taken with her music back then - there were a couple of tracks I quite liked - but the gig last night was excellent. The Sage is a very modern and extremely-well-designed concert facility with multiple halls. She was playing in one of the smaller halls, with about 1,500 capacity. Anyway, it was an excellent performance, with one particular highlight being the saxophonist - Clare Hirst (who was one of "The Belle Stars" back in the '80s :)
















You Tube



Forum: Pentax SLR Lens Discussion 2 Days Ago  
(Rare?) Meyer Optik Görlitz Primotar 50mm f/2.8 (M42)
Posted By BigMackCam
Replies: 6
Views: 408
Definitely a good way to jump in, and glad you did :p I always like to hear about lenses I'm not familiar with :)

Does it have the push/pull action for setting the aperture? This is a feature of the E. Ludwig Meritar, and I confess it had me a little baffled to begin with :lol:

As for the non-fully-retracting aperture blades, I suspect it's part of the design. I have a Soviet-era Orion-15 28 mm f/6 rangefinder lens that has this same quirk, to quite a noticeable extent, but it's a perfectly normal property of the lens.

If you're interested in vintage lenses and not already a member at mflenses, I'd suggest you join them. I prefer PentaxForums for Pentax-specific and general photographic chat, but mflenses is a great place to find out information on older glass. It's been invaluable for me with some of my Soviet lenses :)
Forum: Pentax SLR Lens Discussion 2 Days Ago  
What would YOU consider a "clinical" image?
Posted By BigMackCam
Replies: 91
Views: 2,330
Another example of subjectivity :D I happen to really like both the DA50 f/1.8 and DA35 f/2.4. I'll admit they don't have anything particularly "special" about them (unless you consider the price / performance relationship), but I find them excellent workhorse lenses - a nice balance of sharpness and reasonable-quality out-of-focus rendering. I'd agree that the colour rendition isn't anything to write home about, but that's an easy one to sort out (and re-apply, through presets) in post. That's just me, though. I fully accept that others will have different opinions...
Forum: Troubleshooting and Beginner Help 2 Days Ago  
Spot on sensor? Or not?
Posted By BigMackCam
Replies: 11
Views: 947
This is quite an old thread, but FYI... The last lot of swabs I bought were DustPatrol Alpha, and I've been very pleased with them. They're USA manufactured in a clean-room environment (essential for me, given that they're for sensor cleaning). They're not the cheapest by a long mark, and some people will tell you that simple cotton bud swabs are just as good... but I'd rather not take that chance.

When choosing sensor cleaning swabs, make sure you get the right size. For Pentax APS-C cameras, you want 17mm swabs... for the K-1, 24mm. If you shoot both APS-C and full-frame, then I'd suggest you go for the 17mm swabs, as you can simply do a couple of passes for full-frame sensors.

Don't forget to invest in some equally-good-quality sensor cleaning fluid too (there's no point using decent swabs if you use just any old fluid). Most recently, I've used DustPatrol Gamma, which is methanol based and seems to work very well :)
Forum: Pentax SLR Lens Discussion 2 Days Ago  
(Rare?) Meyer Optik Görlitz Primotar 50mm f/2.8 (M42)
Posted By BigMackCam
Replies: 6
Views: 408
Welcome to the forums :)

When I first saw your lens, I was convinced it was the E. Ludwig Meritar 50mm f/2.9, which is a "Cooke triplet" design and looks almost identical externally.

I've never seen this particular Meyer-Optik lens before, but a quick read up on it suggests it is, indeed, quite rare. Unlike the Domiplan (which is, like the Meritar, a Cooke triplet), the Primotar has four elements in three groups. It should be able to produce the (in)famous "soap bubble" effect on out-of-focus highlights :D

Nice find! :)
Forum: Pentax SLR Lens Discussion 3 Days Ago  
What would YOU consider a "clinical" image?
Posted By BigMackCam
Replies: 91
Views: 2,330
A perfect example of how subjective this whole thing is :)
Forum: Pentax SLR Lens Discussion 4 Days Ago  
What would YOU consider a "clinical" image?
Posted By BigMackCam
Replies: 91
Views: 2,330
Agreed, the differences can be quite subtle. And it depends, to quite a significant extent, on the content of the scene - positioned within the frame and at various distances.



As I mentioned further up in the thread, this is pretty subjective stuff, IMHO. One person's "pixie dust" may be another person's "nice lens", may be another person's "meh..." :D



Recreating contrast, colour rendition and overall sharpness (at least in the final resized output) can be achieved to some extent in post, for sure. Even the addition or removal of a certain amount of inherent simple distortion and vignetting. But aberrations and out-of-focus rendering are very hard - if not impossible - to recreate effectively. As an admittedly-extreme example, the (in)famous "soap bubble" bokeh from a Trioplan... Perhaps not your cup of tea, but that lens has an awful lot of fans who'd place it in "pixie dust" territory. It's very subjective.



Absolutely - that does happen. Back to my first point; it depends very much on the scene as well as the lens :)
Forum: Pentax SLR Lens Discussion 4 Days Ago  
What would YOU consider a "clinical" image?
Posted By BigMackCam
Replies: 91
Views: 2,330
But... Taking two identical shots, exactly the same subject, composition and lighting, captured with two different lenses of the same focal length, at the same aperture setting... Would you agree that one can look more pleasing than the other because of the way it is rendered by the lens?

An uninteresting photo isn't much use, regardless of the lens used - except perhaps as a record. An interesting photo can - I would argue - have that extra something because of the optical qualities of the lens used. I don't think that has to mean it's especially sharp or super-contrasty (though it could mean that depending on the viewer's preferences)...
Forum: Pentax SLR Lens Discussion 4 Days Ago  
What would YOU consider a "clinical" image?
Posted By BigMackCam
Replies: 91
Views: 2,330
Agreed, 100% :)

I recall an example from last year (I think) when I was photographing office buildings in a nearby city - mostly wide angle shots, positioned down low and pointing up the sides of the buildings towards the sky. The Sigma 17-50 f/2.8 was great for that, as I only wanted the lens to document what it was seeing, without adding much (if any) character of its own. The creative aspects were the composition and lighting, and that was enough; I didn't want or need anything added by the lens.

I guess the point I was making is, "clinical" doesn't mean "bad" (nor, in fact, "good") in every situation. It depends on what we're photographing, and what we expect the lens to bring to the party :)
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