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Forum: Non-Pentax Cameras: Canon, Nikon, etc. 2 Hours Ago  
Pentax K5 (and Oly EM-5) to Sony A7?
Posted By BigMackCam
Replies: 16
Views: 318
... and lossy compressed raw files that can result in high contrast edge artefacts and banding in large areas of gradual colour change (twilight skies, etc.). The MkII models onwards can be firmware updated to offer uncompressed raw, or else have the capability already. But the original A7 series can't. My own Sony A99-based Hasselblad HV has this same limitation, and whilst it doesn't affect a large number of photos, I *have* experienced the negative impact that lossy compression can have. So it's worth bearing in mind depending on the types of photography the OP is involved with...
Forum: General Photography 4 Hours Ago  
Take your batteries out!
Posted By BigMackCam
Replies: 30
Views: 648
I have had one Canon-branded lithium ion rechargeable battery bulge to the point where it was difficult to get it out of the G10 camera. Thankfully, there was no leaking and no damage was caused. This bulging occurred over months of non-use.

I have had one Panasonic-branded lithium ion rechargeable battery - for the DMC-FZ62 bridge camera - become too hot to touch comfortably while charging in the official Panasonic charger.

I have had one third party lithium ion rechargeable battery - I believe it was ExPro brand, for the Sony A7 MkII - become too hot to touch comfortably while charging in the official Sony charger.

Given that two of the batteries were from OEM camera brands, I suspect it's possible that the same or similar issues could occur with other quality lithium ion batteries, including those from Pentax. I have no idea whether they would have leaked or exploded, but they certainly weren't "right". I wouldn't want to risk using or even storing those inside my gear.
Forum: Pentax SLR Lens Discussion 13 Hours Ago  
Zenitar 16mm f/2.8 Fish-Eye lens m42 mount for Pentax K1000
Posted By BigMackCam
Replies: 18
Views: 284
The OP is looking to fit the lens to a K1000 35mm film camera, so should do well with the 16 and 17mm fisheye lenses mentioned.

That said, I'd agree that the Peleng 8mm is great on APS-C :D But circular with the top and bottom cut off on 35mm / full frame...
Forum: General Photography 13 Hours Ago  
Take your batteries out!
Posted By BigMackCam
Replies: 30
Views: 648
That's an *awesome* idea! I have a couple of unused plastic screen protector foils that would be perfect for cutting down into strips :)
Forum: Photographic Industry and Professionals 13 Hours Ago  
Rant: camera prices and quality per format
Posted By BigMackCam
Replies: 36
Views: 882
Whilst I realise your thread isn't about this in isolation, I wonder what you mean by "fuzzy" and "normal viewing distance"? I ask because these can be pretty subjective things, and folks have been printing larger than this with far fewer megapixels for years, with acceptable (even good) results. I also wonder if and how you enlarge your photos, and sharpen the final output, to suit the reproduction size and medium? I'll admit, I'm not asking from a position of experience and authority here, as I very rarely have my photos printed, and I've never had anything printed at the dimensions you're mentioning. But it seems odd that your 36MP landscape shot can't be processed to look good at those dimensions, assuming a realistic viewing distance for such a print :o
Forum: Pentax K-30 & K-50 14 Hours Ago  
K50 slow mirror
Posted By BigMackCam
Replies: 3
Views: 186
Moved to more appropriate forum...

Welcome :)

This does indeed sound like failure of the aperture control mechanism. See the following threads for more information:
Dark exposure problems on K-30 or K-50? Discussion Thread - PentaxForums.com

... and ...

Manual solenoid replacement Pentax K30 / Discharge flash-condenser / Solenoid choice - PentaxForums.com
Good luck!
Forum: General Photography 14 Hours Ago  
Take your batteries out!
Posted By BigMackCam
Replies: 30
Views: 648
Don't beat yourself up over it :o Despite my best intentions, I occasionally forget and leave batteries in something. I was tidying my study / hobby room a few days ago and re-organised my camera, lens and accessory storage. While doing so, I checked to make sure there were no batteries in any of my gear. Lo and behold, my old K-5 had its battery fitted, and so did two of my inexpensive manual flash units. I haven't used those items for three months or more, so it's good fortune that the batteries were OK... :o :p
Forum: General Photography 14 Hours Ago  
anyone else constantly hunting for camera bags?
Posted By BigMackCam
Replies: 42
Views: 719
I agree - take it to a couple of clothing alteration and repair shops to see if they'll do the work. Alternatively, some marine sailmakers might be prepared to help. My Giottos tripod bag was coming apart at one end, and the handle stitched had come out. My local clothing alteration shop did a fantastic job on it with the right size and colour (but better quality) of thread. It's arguably better than new now, and it's certainly stronger. You can tell it has been repaired, but only just. The work wasn't dirt cheap - I think I paid the equivalent of about USD $25 - but the alternative (buying a new tripod bag of similar quality) would have far more expensive...
Forum: General Photography 14 Hours Ago  
Take your batteries out!
Posted By BigMackCam
Replies: 30
Views: 648
I've had both modern Duracell and Energizer alkaline AAs and AAAs leak. In fact, the remote control units for my DVD player (yes, I still have one), digital TV box (yes, one of those too - although no longer used) and my previous main TV all had reputable brand alkaline batteries leak in them. And I'd agree, the older versions of premium brand batteries seemed to be much less prone to it. Cheap brands, sure - but Duracells and Energizers used to be less prone.



I now use good quality branded NiMH batteries in any equipment that will operate satisfactorily with them. I've never had them leak. I've had a couple of the higher capacity Eneloops go bad to the point where they won't fully charge... but other than that, they've been fine...
Forum: General Photography 15 Hours Ago  
Take your batteries out!
Posted By BigMackCam
Replies: 30
Views: 648
Sorry to hear that :(

After reading a few horror stories over the years, I now store all of my cameras and ancillary equipment with the batteries removed - at least, I do if they're going to be left unused for more than a couple of weeks at a time, and if I remember (which I generally do). With cameras, it's a pain because they need the date and time setting when next used, but so be it.

I also check the physical condition of batteries before charging to see if the cases are bulging or cracked, and during charging for excessive heat. In either case, I'll dispose of the offending battery (responsibly, of course). In the last three or four years I've disposed of one bulging battery (genuine Canon branded for a G10) and two that became disconcertingly hot during charging (a genuine Panasonic battery for my DMC-FZ62 bridge camera, and a reputable third party battery for my A7 MkII). It's not many, but enough to justify caution.

I don't charge batteries overnight, and I don't leave them charging any longer than is necessary, to reduce fire risks. I'm not obsessive about checking them, but once I see they're ready, I take them out of the charger and unplug it...
Forum: General Photography 1 Day Ago  
anyone else constantly hunting for camera bags?
Posted By BigMackCam
Replies: 42
Views: 719
I've yet to find a bag I'm completely satisfied with, largely because I have different requirements on different occasions.

The closest I've found was a Kata Lite 445 DL that I bought cheaply when the brand was acquired by Manfrotto. It's light weight, tough, sturdy, well padded all round, roomy, easily configurable with the inserts, deep enough for a 70-200 f/2.8 or DA*60-250, internal zips are well covered to avoid rubbing against equipment, has enough pockets, and comes with an effective rain cover. The strap is great too. It carries plenty for a weekend or even a week's shooting, but as a result it's not all that compact. I wish I'd also bought one of the slightly smaller variants to carry my camera and a couple of additional lenses, as that would be more practical to carry. Plus, it looks like a camera bag, so I would be wary of carrying it around in certain situations - and I certainly wouldn't leave it sitting anywhere unattended...

I would love a Domke or Domke-style bag, but only if it was padded... I've had a couple of situations where I know for sure the padding in my Kata saved the day :o
Forum: Pentax SLR Lens Discussion 1 Day Ago  
Zenitar 16mm f/2.8 Fish-Eye lens m42 mount for Pentax K1000
Posted By BigMackCam
Replies: 18
Views: 284
Welcome! :)

It's an excellent lens, especially on a 35mm film or "full frame" digital camera. I agree with others that you'd be better off going with the K-mount version to use with your K1000.

I will say, though, it's worth shopping around for a good used example. That link you've provided shows the latest version of the lens, but the older versions are optically identical. A good, used K-mount example should only set you back around $100 - $150, which is a huge saving over the new one. I have the older M42 mount version (modified for full manual control) and I seem to remember I paid around $100...
Forum: General Photography 2 Days Ago  
Does that really add more value?
Posted By BigMackCam
Replies: 92
Views: 1,444
... You win. I give up :o
Forum: General Photography 2 Days Ago  
Does that really add more value?
Posted By BigMackCam
Replies: 92
Views: 1,444
A cell-phone on a tripod isn't much use for photographing birds in flight, though... or shallow depth of field portraits from a number of different angles and focal lengths... or the winning goal at your local soccer team's football game... or... or... or... etc. As always, it's entirely dependent on the intended use case, the photographer's intent and personal preferences in how they prefer to work. Cell-phones offer some specific advantages in certain use cases. So do tripods. Flashes too. And, of course, larger sensor interchangeable lens cameras...
Forum: Pentax SLR Lens Discussion 2 Days Ago  
FA zooms: why the nadir of Pentax lens lines?
Posted By BigMackCam
Replies: 39
Views: 1,075
I can't answer your question about market conditions, but I can say that this wasn't unique to Pentax. As a second system I shoot Sony A-mount, which is the evolution of Minolta AF and backward compatible with that mount. There are many low end, plastic build, optically uninspiring Minolta / Konica Minolta lenses that came out around the same time as Pentax's lower-end FA and FA-J offerings. I have a few, and whilst it's still possible to take great photos with them when used sensibly (generally, stopping down sufficiently), they're really not that great. But, like their Pentax cousins, it's amazing just how many have survived to the present day and remain in full working order. So I think the quality of construction is somewhat better than the feel of the materials would suggest...
Forum: Photographic Industry and Professionals 2 Days Ago  
Rant: camera prices and quality per format
Posted By BigMackCam
Replies: 36
Views: 882
I feel more-or-less the same, generally... however...



I'm not sure whether it's stagnation or the fact that we're reaching a point where not much that's truly new and/or significantly better is possible with the given component technology the camera manufacturers have available. And plowing big money into larger technological advances in the current market is a very risky strategy. Of course, the lack of innovation and technology advances may, in itself, be a factor in the declining market, but I'd say it plays a considerably smaller part than general saturation. Given that, you have to ask which, if any, of the brands has a sufficiently high appetite for risk to make the necessary investment for a real leap in technology...
Forum: Troubleshooting and Beginner Help 2 Days Ago  
Need advice please is my lens faulty what is causing the coloured circles.
Posted By BigMackCam
Replies: 28
Views: 659
Ha ha :lol: Thank you, that's the nicest thing I've been called in a long time, perhaps ever :o I won't mention the others... best not to dwell on those :p :lol:



I think you're the first forum member to notice that :p Yes, Sunderland born and bred, a "Mack'em"... now living a few miles away just outside Durham :)
Forum: Pentax News and Rumors 2 Days Ago  
New K-series DSLR under development to be exhibited
Posted By BigMackCam
Replies: 2,913
Views: 177,205
Someone who favours snc, I believe...

Oh, wait, the question was already answered :p :lol:
Forum: Troubleshooting and Beginner Help 2 Days Ago  
Need advice please is my lens faulty what is causing the coloured circles.
Posted By BigMackCam
Replies: 28
Views: 659
Yes, that's lens flare. It's caused by light from a strong source - in this case, an incredibly bright sun - bouncing off internal surfaces of the optical elements in your lens. It's perfectly normal in this situation... You'll see it occur to different degrees in similar photos by other photographers, and in movies you might have watched. It varies by the lens being used... the more optical elements and the fewer coatings used on the glass, the more reflections can occur. If you're shooting with a UV filter or other filter on your lens, try removing it, as they will often introduce or exacerbate the effect. Otherwise, it's one of those things you'll need to accept and live with, or use creatively. Strong light sources positioned diagonally away from the centre of the frame - perhaps just outside the frame - can produce very nice looking flares at mid-range and larger aperture settings that might be complementary to some types of shot :)
Forum: General Photography 2 Days Ago  
Does that really add more value?
Posted By BigMackCam
Replies: 92
Views: 1,444
With apologies to the OP for veering off topic, that's my biggest concern with shooting JPEG... I guess you have to think of it like a film - you'll get whatever colour and contrast reproduction you're given. I have shot some JPEGs over time with my various cameras... and I'll probably get hung up by my boots for saying this, but I rather like Sony's "Standard" in-camera profile. Like most other cameras from various brands, it's not entirely honest - but the colours, whilst a little "optimistic" (!), are somewhat representative of reality and make for quite pleasing photos. I've not felt the same way about Pentax JPEGs (at least, not with the K-5 / K-3 / K-3II), but that's based on limited experience, so maybe I'm the problem there. I do wish all camera manufacturers would provide an in-camera profile that's calibrated to an industry-wide colour chart. Then, exposure and white balance issues aside, colours should at least appear more-or-less accurate in terms of hue, saturation and luminance...
Forum: General Photography 2 Days Ago  
Does that really add more value?
Posted By BigMackCam
Replies: 92
Views: 1,444
You can summarise and add a conclusion, but you can't close the box once it's open... Having asked the original question, the thread has a life of its own now :p :lol:
Forum: Pentax SLR Lens Discussion 2 Days Ago  
What's wrong with this picture? (Long lens focusing issue)
Posted By BigMackCam
Replies: 9
Views: 480
Honestly, the amount of detail it has picked up is decent enough. I'm inclined to think this is more a case of the phase of the moon and possibly atmospherics at play, rather than a focusing problem or poor sharpness from the lens.

I have dozens of moon shots taken at different times and in different conditions with the same lenses, and the results can vary hugely. Clear, cold winter nights with the moon high in the sky and stars that aren't twinkling will generally give very good results if you're just photographing the moon. The phase of the moon makes a huge difference... Full moons tend not to have enough natural contrast to make them interesting as they're very directly and evenly lit. You're much better off with a significantly waxing or waning moon to emphasise the surface details.
Forum: Non-Pentax Cameras: Canon, Nikon, etc. 2 Days Ago  
Pentax K5 (and Oly EM-5) to Sony A7?
Posted By BigMackCam
Replies: 16
Views: 318
The original A7 is not a camera to use in inclement weather. Even the improved A7 MkII that I own doesn't have the level of weather resistance that Pentax's WR bodies offer. Also bear in mind that the original A7 doesn't have in-body stabilisation, which can make a big difference if you're shooting hand-held in less than ideal light and want to keep ISO down. Battery life isn't great either.

That said, if you can find one cheap enough and live with its limitations, it's still a great camera capable of excellent results. But your K-5 is a far better camera for shooting in rougher conditions...
Forum: General Photography 2 Days Ago  
Does that really add more value?
Posted By BigMackCam
Replies: 92
Views: 1,444
I've actually found SOOC information of more interest recently.

For some time, I've only shot raw. But occasionally, I'll be away on a few days' break or longer vacation with only my low-power tablet PC with me, which isn't capable of supporting any useful raw editor, and it would be handy to be able to review and process at least a version my photos using my tablet. As such, I've been considering shooting raw + JPEG on those occasions - so I find it interesting when I see really great results that folks have achieved straight out of the camera. I'll admit that I've become a little lazy with my exposure accuracy in recent years, due to the shadow and highlight recovery available in even my older cameras. I'd like to become more proficient at getting things close to perfect in-camera...
Forum: General Photography 2 Days Ago  
Does that really add more value?
Posted By BigMackCam
Replies: 92
Views: 1,444
With respect, Matti, those are very personal and subjective views... no doubt valid for you, but not for everyone. I can't speak for our other members, but I have a variety of reasons and goals for shooting the different cameras and lenses I own, and a variety of reasons for how I choose to shoot them on any given occasion (including whether I use a tripod or shoot hand-held). Just as you do, of course. But our reasons and goals probably aren't the same...
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