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Forum: Troubleshooting and Beginner Help 05-24-2020, 02:52 AM  
Monochrome setting on K20D
Posted By Robot camera
Replies: 18
Views: 846
I found that if I used the monochrome with yellow filter settings on my K20D, it pretty well matched the black and white conversion the DXO Optics of the time made. I knew I was getting a colour image, but the camera would give me a black and white preview which helped with composition. I still have my K20D. If you can find a similar combination of settings and conversion, you'll be able to get predictable results.
Forum: Repairs and Warranty Service 02-20-2020, 02:04 AM  
Worth repairing a "soft" Pentax DA 1224mm lens?
Posted By Robot camera
Replies: 12
Views: 802
I have a very similar issue with my own 12-24mm. I've had it a long time and have made many a sharp photo with it. It has not been dropped, but now the distance scale is off, and while the right hand side of the image is very blurred the left hand side is fine. Something seems to be slightly loose inside. I suppose it would cost me (from the quote you had) about 200 to get fixed.
Forum: Pentax K-1 01-30-2020, 04:37 AM  
The K-1 mark 2 can focus...
Posted By Robot camera
Replies: 22
Views: 4,335
Looks good to me! But most of these snowboarders look as though they are just about to land on their ears! I'm now thinking about the coming APS-C camera; will it be as good?
Forum: Flashes, Lighting, and Studio 12-25-2019, 06:52 AM  
Macro desktop lighting on a budget
Posted By Robot camera
Replies: 10
Views: 670
These are good; I've used the clamp type or similar Ikea products for photographic purposes. I'd get black ones, so they don't show up in embarrassing reflections that aren't noticed until you've finished.:(

The ones sold in the UK have a power supply that's part of the plug, but the on/off switch is on the low voltage cable to the lamp. This means that you can turn the light off, but the power supply is still drawing power. All that means is that you are using (and paying for!) electricity even when you aren't using the lamp. So, if the USA ones are the same, turn 'em off/unplug 'em at the socket. Otherwise I can't fault 'em, especially at this price.
Forum: Pentax Medium Format 12-23-2019, 12:44 PM  
Do you trust your online storage?
Posted By Robot camera
Replies: 68
Views: 3,069
Online storage; "the cloud" is somebody else's computer, and I'd have no idea of its location. Once I realised this, I knew that I wouldn't be trusting it.

When I was looking for back up software, (I settled on SuperDuper) I found one that saved my files alright, but without that software I could not access a single one; I would be at the mercy of the software company, or if anything went wrong I'd be stuffed. I want a system that will fail safe, not one that will leave me swinging in the wind.
Forum: Product Suggestions and Feedback 12-06-2019, 10:15 AM  
Mount focusing DSLR for vintage lenses
Posted By Robot camera
Replies: 11
Views: 1,004
The Contax system I posted about above had lenses with floating elements, and the user (he says) would get the focus close manually, and then fine tune with AF. Not ideal, but I suppose it depends on the priorities of the moment. There's more on this at the link, but it's apparently reasonably practical.

I agree on the wideangle V telephoto requirements. I think the maximum extension would be governed by wide angle needs, especially as wide lenses are harder to focus manually; it would be of more use for shorter lenses.
Forum: Pentax News and Rumors 11-26-2019, 01:44 PM  
SRS Microsystems 'Pentax 100' Event on Saturday 23rd November
Posted By Robot camera
Replies: 37
Views: 4,134
My report is on the forum here. 14 photos, about 1,000 words. Enjoy!
Forum: Pentax News and Rumors 11-26-2019, 01:37 PM  
A Hundred Years of Pentax, in England.
Posted By Robot camera
Replies: 35
Views: 4,168
I made it to SRS Microsystems in Watford town centre at 10:45, just in time to hand my old K20D in for the sensor clean I’d booked up. It was one of the freebies on offer for the Pentax 100 Years celebration. The shop was packed, and most of the people in there were Pentaxians.

Ten minutes later, I’d found a front row seat in the lecture room in the cellar, and Pentax ambassador Matt Emmett started his seminar on Rediscovering Our Forgotten Heritage. There were other seminars and lighting workshops throughout the day, and like this one all free. Matt is a photographer of abandoned buildings, and takes photos with a strong graphic element; just my sort of thing. I managed to have a very brief chat with him later. Nice bloke.

Back upstairs, I had a look at some lenses. I have pretty much all the lenses I need, but I still tried a couple on my K3. The 21mm f/3.2 was a nice lens, but for me fell between two stools, being a little too wide, or not quite wide enough. Maybe the 15mm would suit me. The 20-40mm I tried would make a nice simple outfit with the 77mm. I gave both lenses back and tried the new 35 f/2 on their demo KP. Very nice it was too.

Soon it was nearly 1pm, when the President of Ricoh Imaging Mr Shinobu Takahashi was due to speak. I hurried across the way to the appropriately named but very badly spelled Pryzm nightclub, and grabbed a cup of tea. I found a table to sit at, and got into conversation with a couple who had come from Fleet in Hampshire. Other people I talked to that day had come from Birmingham, Banbury, and Yorkshire. One man had come from Sweden. I seemed to be the only one there without a goody bag, so I asked where they had come from and had to nip back SRS for one. Back at the table I had a quick look in the goody bag, and the first thing I found was a nice Pentax mug. The covers were taken off the free buffet, and we dived in.

About a quarter of an hour later we had the call to go upstairs for the president’s speech. There was one empty seat on the front row and I took it. Mr Takahashi began his speech, which was quite informal. He was pleased at the day’s excellent turnout and told us he would be in England for just seven hours. The president of the company had come all the way fromJapan just to speak to us in Watford.
Mr Takahashi told us that Pentax intends to keep on with the K mount and will continue to make DSLRs. He talked about further automation in cameras but also said Pentax realises that many of us like to use our technical skills when using a camera. This describes me.

He talked to us about the UK photo competition Pentax jointly held with SRS earlier this year, part of the birthday celebrations. He asked who in the room had entered it and I was one of several who put their hand up. It was such a good turnout, he said, that there will be another competition next year, and the prize will be a limited edition KP camera.

Wine glasses were handed out, and we raised a glass to another hundred years for Pentax. The prototype camera was unveiled. We looked at it, from our seats.
Mr Takahashi cut the cake, with a small katana like sword. He told us smiling that this was the first time he had handled such a blade. But before we could eat cake and inspect the prototype we all stood up to play rock, paper, scissors against Mr Takahashi. The winner would receive a special momento of the day.

The first round saw quite a few of us beaten by Mr Takahashi and they sat back down. Now, I’m not sure if there were one or two more rounds, but to my surprise and delight, I was the last Pentaxian standing; I had won.
Mr Takahashi presented the momento to me, and I shook his hand. It was, most appropriately, a Pentax pentaprism, engraved with “PENTAX 100 YEARS OF HISTORY” on the side that faces the focusing screen. I doubt there’s more than a couple of dozen of these in the world. It was in a finely constructed hand made box, with ‘PENTAX’ lightly engraved into the top face. I was very pleased.

Several people asked to see it, and two or three asked me if I was going to Ebay it. No. Never. It is now displayed on a shelf in my living room.
At last we had a chance to look at, but not touch, the new APS-C design. I have little to add that hasn’t already been said on this forum, except that compared to my K3, although it’s about the same width, the prototype’s lens mount looks a little bigger in proportion to the whole camera.

I saw a man with a K1 trying to get a shot of the bottom of the mirror box, saying something about trying to photograph the AF sensors.
One of the SRS bods asked us to have our portraits taken to record the day, and said we would get a Pentax cap for doing so. I soon joined the queue.

Things were quietening down. There was another workshop upstairs but like everything else, it was fully booked. It was time to go, but it had been a fine day. Pentax and SRS had been very good to us.

Captions
(If you can tell me how to place each caption with its photo, that would be very helpful)
1) The shop was crowded when I got there.
2) This man had come all the way from Sweden.
3) Sensor cleaning continues while the next seminar begins.
4) A shot with the 21mm f/3.2
5) This man let us try some lenses.
6) One of the historical cabinets at the back of the shop.
7) A Pentax man from Fleet in Hampshire.
8) Yes, the cake.
9) The audience for the president’s speech.
10) Mr Takahashi shows us the special edition KP camera.
11) Behind me were…
12) To the next 100 years.
13) Mr Takahashi cuts the cake.
14) The engraved pentaprism.
Forum: Product Suggestions and Feedback 11-25-2019, 01:07 PM  
Mount focusing DSLR for vintage lenses
Posted By Robot camera
Replies: 11
Views: 1,004
There's nothing new under the sun, and this has been done, in the shape of the Contax AX 35mm SLR. So you are right, it's quite possible. Contax, with different design constraints because it was a film camera, chose to move the film plane and shutter back and forth. I think that moving just the lens mount as you have suggested would be an easier answer with a digital camera. The review at the link goes into quite a lot of detail that is relevant to your ideas; it's well worth a look.
Forum: Welcomes and Introductions 11-24-2019, 04:01 PM  
Hello from Sas in Suffolk
Posted By Robot camera
Replies: 27
Views: 880
Greetings from Milton Keynes!
Forum: Photographic Industry and Professionals 11-17-2019, 03:13 PM  
Terry O'Neill, CBE, dies aged 81
Posted By Robot camera
Replies: 8
Views: 838
sasatro, thanks for the link.

A friend of mine is also named Terry O'Neill; he's a ground worker. When he lived in London he sometimes had phone calls to go to exotic locations to take photos. "I'd love to, mate, but...."
Forum: Troubleshooting and Beginner Help 11-06-2019, 04:41 AM  
Pentax K-R - Selector dial bad contact
Posted By Robot camera
Replies: 22
Views: 1,138
I have a K20D. The front selector wheel or whatever it's called, doesn't work on every click. I am also interested.
Forum: Pentax News and Rumors 10-31-2019, 07:41 AM  
SRS Microsystems 'Pentax 100' Event on Saturday 23rd November
Posted By Robot camera
Replies: 37
Views: 4,134
Dammit, I knew I should have kept quiet... :)
Forum: Pentax News and Rumors 10-31-2019, 07:22 AM  
SRS Microsystems 'Pentax 100' Event on Saturday 23rd November
Posted By Robot camera
Replies: 37
Views: 4,134
I didn't realise I had to book up! I'm glad I read your post now, so many thanks.

I live in Milton Keynes, it's about 37 miles to SRS's shop, I have mastered the Watford one way system; I'm going.

PS
It'll take me a bit over an hour to get there. :)
Forum: General Photography 10-17-2019, 10:36 AM  
The Ideal Pentax Mirrorless Camera
Posted By Robot camera
Replies: 69
Views: 2,322
Firstly, I'd want a mirrorless Pentax to use the same battery as the DSLRs, not some tiny thing that doesn't last very long.

I see no real advantage in changing the mount. A mirrorless Pentax could be optimised for certain sorts of photography because the layout of components is not restricted by optical considerations. If you want to see what I mean by optimisation, look at the huge variety of designs that have been made for the 6X7 rollfilm format. A camera that shared the K mount but with rather different capabilities than the DSLRs would be part of a camera system that would be far more versatile than one that has DSLRs only; a unique selling point.

While a few wide angle primes and maybe even some standard lenses could be made smaller and lighter, many other lenses would have to be made longer and a bit heavier. I've compared the Pentax and Sony APS-C lens ranges, and there's little in it overall once you get a camera bag full. I have a Sony A6000 as a daily carry and it takes good photos, but to use my Pentax lenses requires an adaptor. I'd far rather it had a K mount, even if it was a little bigger and heavier.

Using an adapter to mount system lenses to a camera that's supposed to be part of the system is just a bodge.
Forum: General Photography 08-25-2019, 02:27 PM  
Motorcycle Travel Questions
Posted By Robot camera
Replies: 21
Views: 1,121
This is my present bike. You can see the camera bag in the open pannier. It has 16mm of camping mat foam (2 layers) on the sides, and 40mm on the bottom. There's also 24mm in the bottom of the pannier, as many of the roads round here are in very poor repair; there wasn't enough room to put more padding in the bag and still get the camera in.

I carry a K3 or K20D with lenses, the 16 to 50mm and/or various primes and sometimes a flashgun. My Sony A6000 sometimes travels in the bag, in the pannier. I've not had any problems so far. I used to have 25mm of anti vibration foam on the bottom and sides of the bag until it disintegrated through age. Before the K20D, I carried a Minolta X700 and lenses, again with no problems.

I have used the same bag for at least twenty five years, on the following bikes: Kawasaki Z1-R, Kawasaki Z400, MZ TS250/1 (Supa 5) Yamaha XV750, and now the bike in the photo, a Yamaha XJ750. All but the XJ750 had the anti vibration foam lining before I changed it for the camping mat foam.

Regarding vibration from the bike, I once firmly lashed the K20D to the rack on the present bike, to take photos of a bike with the camera on the interval timer. The shutter was set to 1/500th, the shake reduction was on, but many shots were still spoiled by vibration. Yet in the bag that's in the pannier attached to the same rack, the camera suffers no damage that I can detect. the bag is a British Army respirator bag.

I hope this helps.
Forum: Pentax Q 07-12-2019, 04:13 PM  
Replacement rubbery flaps for Pentax Qs?
Posted By Robot camera
Replies: 7
Views: 1,102
Is it possible to make a replacement with Sugru? I used it to make a wall around the mode dial on my old K20D, so I don't accidentally move the dial when the camera goes in and out the bag. It's fairly flexible. Though a bit pricey for what it is, if there's no other choice it would be a cheap repair. It does come in black.
Forum: Troubleshooting and Beginner Help 07-03-2019, 03:58 PM  
Real Estate Photography - Awful Colours
Posted By Robot camera
Replies: 30
Views: 2,245
I used to shoot houses for Airbnb, (I found it not worth the trouble in the end) and I would use my K20D and 12-24mm zoom. I used auto white balance. I would set the general exposure so that nothing inside was blown out to white, ideally with some detail in the view from the windows. All house lights would be on, but contributed almost nothing to the light levels.

Then I would set my flash exposure (on a manual, fractional setting) to the right level of fill. I nearly always bounced the flash off the ceiling that was above me, but sometimes I had to bounce the flash off a white card when the ceiling was unsuitable, or I was shooting through a doorway. I never used a tripod; with shake reduction and at 400 ISO I didn't need one. Colour balance was fine.

If I did it again, I would have another flashgun that could be remotely triggered, on a stand. It would use it for places that were not otherwise being lit, and again bounce it off the ceiling. In your shot above, though, I would have it in the kitchen but bounce it off the white cupboards out of shot, since the ceiling and walls are all yellow.
Forum: Pentax DSLR Discussion 05-29-2019, 02:55 PM  
What's your favorite 2008-2013 APS-C Pentax DSLR and do you still use it?
Posted By Robot camera
Replies: 71
Views: 5,982
My K3 is just fine. I bought it from SRS in Watford after the K3ii had superseded it, and they were sold out of their remaining stock that Saturday; even the two used ones were gone. It's a great camera. I sometimes use the built in flash of the K3, but the astrotracer function of the K3ii isn't much use to me, which is why I went for the older model. I got it at a very good price, too. If I ever need the astrotracer function, I'll borrow the separate module from my brother.

I still have my first Pentax DSLR, a K20D. I used it a couple of weekend ago. It comes out when I need two camera bodies, and gets it's old mate the 16-50. The K3 got the 60-250 that day. The K20D is set up for manual focus. It has a Katzeye screen and the Pentax magnifying eyecup. Oh yeh, it also has a small piece of velcro on the rear AF button so I can find it by feel (as does the K3) and a wall of Sugru around the mode dial so it doesn't get knocked onto the wrong mode. And, I almost forgot, some basic depth of field tables for 24 and 50mm lenses, sellotaped to the base.
Forum: General Photography 05-27-2019, 04:13 AM  
Canon EOS Rebel SL3 - smaller than the K100D Super
Posted By Robot camera
Replies: 28
Views: 1,365
Fed up with lugging around two pounds of lens and camera when I wasn't out just to take photos, I bought a used Sony A6000 with the 16-50 f/3.5 to f/5.6 lens. With the fixed metal lens hood I use it's slightly smaller and lighter than a compact 35mm SLR and 50mm lens; in my case I compared it with my Minolta X700. It produces good quality results and is a lot less trouble to carry around than my K3 or K20D and 16-50mm f/2.8. It helps that the zoom range is just the same, though the lens is slower. But Pentax or Sony, I shoot at around f/6.7 most of the time anyway.

For taking photos of unexpected subjects at high quality it's great. The lens is good. It has an electronic viewfinder, which is, er, okay. The controls work differently; it would be nice if it was a Pentax. Batteries last no time at all, so I treat it as I would a film camera; I check every time. Even new, this camera and lens is only 500.

I also use a Canon G9 compact. It fits in a belt pouch and I hardly have think about it being there. Of course, it doesn't match the technical quality of my Sony or Pentax, but it's good enough for most things.
Forum: Pentax SLR Lens Discussion 04-12-2019, 03:37 PM  
Can't get a filter off
Posted By Robot camera
Replies: 20
Views: 1,210
I had a stuck filter on my 16-50 the other day. I put the petal lens hood back on in the storage position and gripped it in my left hand. This gave me enough of a grip on the lens to remove the filter with my stronger right hand. With an older (manual?) lens, rack it out to the minimum distance, to give yourself more to hold onto.
Forum: Pentax Medium Format 03-27-2019, 09:34 AM  
NIKKOR LENS on PENTAX 645Z
Posted By Robot camera
Replies: 8
Views: 1,463
If it's one of the Nikkors for the older Bronica S2 6 x 6 SLRs, there's plenty of room for an adaptor and the lens will cover the sensor. But from a quick search, you'll need a focusing helicoid too, as the helicoid was part of the camera. You can get helicoids from Ebay. Here's a link to camera mounts arranged by register distance (or flange focal distance, as torashi calls it above)
Forum: Pentax Camera and Field Accessories 03-21-2019, 10:41 AM  
Bolt size
Posted By Robot camera
Replies: 8
Views: 703
It's known over here as a 1/4" Whitworth bolt. Whitworth were the first standardised thread form, in 1841. I'm pretty sure the bigger tripod screw is also Whitworth, 3/8". More recently these sizes have been re standardised as UNC threads; the same number of Threads Per Inch, (20 tpi and 16 tpi respectively) but the screw thread has 60 degree sides instead of 55 degree ones. In practise it probably makes little difference, but you may be able to find UNC bolts more easily; the bolt is only done up finger tight, after all.

If you have to order this stuff, a bolt doesn't have a thread that goes all the way to the head, a set screw does. This cork sheet looks useful for stopping things from swivelling about, though I haven't yet tried it myself. You'll have to do a search in your own country. (I see you are in Australia)

Taps and dies to clean, cut or extend threads for all these sizes are easily available for either, at least in the UK, and I find them useful for making various brackets. Don't buy the ones that are "for restoration". They are cheap for a reason.
Forum: Troubleshooting and Beginner Help 02-09-2019, 02:14 PM  
K3 saving digital preview as a RAW file
Posted By Robot camera
Replies: 18
Views: 1,349
When just taking photos, it's set to RAW. I cannot see where to set the file type of a saved digital preview image.
Forum: Troubleshooting and Beginner Help 02-09-2019, 01:33 PM  
K3 saving digital preview as a RAW file
Posted By Robot camera
Replies: 18
Views: 1,349
I fairly often save my digital preview images, but find the camera saves them as a JPEG, when I want to save them as a RAW file. Is it possible to change this? I've had a good look through the manual and camera menus, to no avail. As the thread title says, the camera is a K3. The first version.
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