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Forum: Digital Processing, Software, and Printing 04-17-2019, 04:12 PM  
Installing Digital Camera Utility with no CD drive
Posted By Robin58
Replies: 28
Views: 13,363
I have a friend who is having the same problem except that he is using a MacBook without a CD Drive. I have passed your info onto him, hopefully it works. This situation surprises me somewhat because all you need to download software on the Canon site is the serial number of your camera. Surely in this tech age Pentax could do the same?
Forum: Pentax SLR Lens Discussion 11-19-2018, 04:18 PM  
Has anyone converted a K-mount lens to m42 screw mount?
Posted By Robin58
Replies: 12
Views: 2,111
This thread may still be relevant to anyone wanting to fit a Pentax K bayonet lens to an M42 screw fit bellows. I wanted to fit a Pentax-A 50mm f1.7 K bayonet lens with a 49mm filter thread to my Pentax II M42 screw fit bellows so that the slide copier would fit the 49mm filter fitted to it. This would then enable me to fit my Pentax K1 MK II full frame DSLR body to the bellows using a conventional commercially available M42 to K bayonet adaptor. I could not find a Kbayonet to M42 adaptor anywhere, simply because no one thought anyone would ever need one. It would extend the lens for a start so would normally only be useful as an extension tube. So, I made my own...and quite a simple project it turned out to be. I simply cut the end off a Pentax K lens cap. Fitted an M42 T2 adaptor to it. Fitted a small screw to lock the lens in place, fitted the lens and the assy to my bellows, fitted the K/M42 adaptor to my camera and fitted that to the other end of the bellows, together with the slide copier in place and hey presto! Only image I have of the set up at present. More details can be made available to those interested.
Forum: Monthly Photo Contests 11-09-2018, 04:31 PM  
perfect steel wool reflection
Posted By Robin58
Replies: 37
Views: 685
I would like to nominate this photo
Forum: Monthly Photo Contests 11-09-2018, 04:31 PM  
Mirror Image
Posted By Robin58
Replies: 41
Views: 626
I would like to nominate this photo
Forum: Pentax K-5 11-09-2018, 09:26 AM  
The K5 aspect ratio is not 1.5, and it can cause problems...
Posted By Robin58
Replies: 15
Views: 5,789
For the benefit of new readers to this thread - The sensor size of a K5 in mm is 23.4 x 15.6...that's an aspect ratio of 3:2 EXACTLY. However, that sensor has 16.3 effective MP, but only 4928 along the 23.4mm side and 3264 along the 15.6mm side are used to create the image - that's 16,084992 pixels in total in an image (less than the 16.3MP of the whole sensor) giving an aspect ratio of 3:2 APPROX. Anyone trying to print to an exact ratio of 3:2 as in 30" x 20" or 36" x 24" prints with the whole image from this sensor is going to be disappointed with either space or cutting off occurring. Crop the image to the exact 3:2 ratio if you don't want either occurring.
Forum: Pentax K-1 09-28-2018, 06:47 AM  
K1 II and home made M42/K adaptor for fitting M42 screw fitting items.
Posted By Robin58
Replies: 4
Views: 1,120
Thanks for your reply Not a Number. I have found that if I use 'Live View' and Tv on my K1 II with the bellows/slide copier set up, I get the equivalent of wide open aperture viewing because the camera auto compensates for the small aperture I choose by selecting a longer shutter time. It makes focusing easier too. Auto bellows certainly come into their own when viewing through the viewfinder though.....as did the right angle finder I used to use on my older Pentaxes. Sadly, as I pointed out, it doesn't fit the optical viewfinder of the K1 - but then my old film Pentaxes didn't have Live View either!

---------- Post added 09-28-18 at 03:01 PM ----------

Thanks for your reply and interest jbinpg. As I have pointed out in my reply to Not a Number, a Pentax with 'live view' can view the slide being copied on the LCD screen, at a stopped down aperture, with what appears to be similar to what open aperture viewing would be on the OVF. Mounting the whole assembly on a tripod makes life easier as I have shot some slides at long exposure times, although to be fair, any movement in the camera would be the same movement at the slide copier end. Good luck with adapting your M42 bellows to a K bayonet fitting camera. I have not tried the set up with an APS-C camera, let me know how you get on if you do.
Forum: Welcomes and Introductions 09-26-2018, 01:43 PM  
Introduction
Posted By Robin58
Replies: 7
Views: 488
OK Mark, thanks.
Forum: Pentax K-1 09-25-2018, 05:25 PM  
K1 II and home made M42/K adaptor for fitting M42 screw fitting items.
Posted By Robin58
Replies: 4
Views: 1,120
Oh Pentax, you have let me down....not in an earth shattering way, but very slightly in your backward compatibility. I started with a Pentax SV in 1964, upgraded to a Spotmatic then went through practically all the 35mm Pentaxes bar a couple - didn't bother with a K1000 or an MX. Finished off with the ultimate Pentax 35mm SLR IMO - the LX - before changing my allegiance to Canon - partly because I started working for them in 1987 and I subsequently got a great staff discount on both cameras and lenses, but also because the EOS system had just been introduced. It was only natural to continue with Canon when their FF DSLR's came out because all my Canon EF lenses continued to fit. I still hankered after a Pentax FF DSLR though. Anyway, one accessory I purchased somewhere along the Pentax way (probably the 1960's) was a Pentax right angle finder. It fitted every Pentax I ever owned right up to the LX. However, my beef is that it does not fit the K1!

To praise Pentax on one aspect of backward compatibility however, I have to say that all the 4 Pentax K lenses I still have that I purchased after buying a Pentax K2 around 1975, fits and works perfectly on the K1 II - except in having to use manual focus of course. I also bought, in the 60's, an M42 screw fitting Bellows II/Slide copier unit, which I later adapted to fit my subsequent K camera purchases. I adapted it to fit my K2 years ago by purchasing the M42 to K adaptor - which allowed all the K bodies I purchased later to be fitted to it as well. However, one small problem with the arrangement back then was not finding an adaptor to fit a Pentax K bayonet lens to the M42 screw fitting on the bellows, which would allow me to use the bellows for close ups and also to continue using the slide/neg copier. I overcame that by making one myself....by mating an M42 T adaptor with a suitably modified K lens cap (see photos - but bear in mind everything attached to the K1 II is between 40 and 55 years old and is obviously showing it's age. It all works however!) Anyway, just one more moan about my big disappointment. I'm disappointed that ,after fitting every Pentax I've ever owned before the K1 II, the right angle finder does not fit the eyepiece of the K1 II body! OK, it won't kill me, but to rub salt in the wound, it fits all my Canons!

For anyone interested in fitting a K bayonet lens to M42 screw fitting item such as old bellows units or old screw fitting extension tubes etc.) the following photos show how I did it. The first image is of the complete assembly - K1 camera with a K/M42 adaptor fitted (readily available from many outlets,) the bellows, then the home made M42/K adaptor (which can also be used together with the M42/K adaptor as a manual 22mm extension tube BTW), followed by the lens and finally the slide copier. The second image shows how the camera and lens can be used together for extreme close ups, image 3 is of the lens and home made adaptor on their own and 4+5 shows the home made adaptor on it's own. Of course everything is manual except that I have found the K1 II will show in LV a correctly exposed image with the aperture closed down. Any question on making the adaptor, please ask.
Forum: Welcomes and Introductions 09-24-2018, 07:08 PM  
Introduction
Posted By Robin58
Replies: 7
Views: 488
Well - for anyone who read my original post back in 2014 you might recall me saying I would welcome a Pentax full frame camera. The new owners (Ricoh) finally obliged with the K1 in 2016. I hesitated long enough to see the K1 MK II released and on seeing it on a promo offer that I couldn't resist, I bought one - together with the Pentax FA 24-70mm f2.8 lens.

I have just added the Pentax AF540FGZ II flashgun. So far, I am still using my Canon 5D4 (am I allowed to mention that? LOL!) for my official assignments, simply because I am not completely familiar with the K1 2 yet and can't afford to miss any shots from being unfamiliar with a particular feature. OK, so I could just go out and use it in any of the modes I am familiar with (Aperture or shutter priority) but what if I want to make a quick adjustment (ISO, Compensation, AF or shooting mode etc.) and I miss a shot through not finding it as rapidly as I can on my Canon?

So, I am enjoying my current learning curve (away from any pressure) with the Pentax K1 2, but if anyone has any tips or advice that will give any shortcuts to that learning curve please let me have them.

Incidentally, it isn't a Pentax ES II that I said I had in my OP, it's an LX - can't think how that mix up occurred. I am currently toying with the idea of putting a film through it! Oh, and the 4 x 35 year old 35mm film camera Pentax lenses I had with the LX...they all work as full frame lenses on the K1 2 - albeit in manual focus! But that is still amazing! Two of them I shan't be using though, the Pentax SMC 'A' 35-70mm f4 is inferior to my new FA 24-70mm lens - it would be a 70-140mm on a crop Pentax!) and the Pentax f2.8 24mm, although a prime, is stop down metering. The old Pentax SMC 'A' f1.7 50mm will get used and the Pentax SMC 'A' f4 70-210mm will too, until I maybe upgrade it to the Pentax FA f4 150-450mm.

The only other lens I have my eye on is the Pentax FA 15-30mm - unless someone knows of a better FF super wide? I have an even older set of Pentax Bellows/Slide copier unit - bought in 1964 when I had a Pentax SV with M42 screw lenses. I already had a M42K adaptor that enabled me to fit the bellows to my LX (and which will subsequently allow the K1 2 to to fit it as well) but couldn't find an adaptor anywhere to fit a K lens to the screw end of the bellows...so, I made my own.
Forum: Welcomes and Introductions 06-09-2014, 04:07 AM  
Introduction
Posted By Robin58
Replies: 7
Views: 488
Hi - I am a Pentax fan having owned most of the Pentax film cameras (still have an ESll). However, I am also a full frame fan and am looking forward to Pentax releasing a full frame DSLR. - Cheers, Robin.
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