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Forum: Film Processing, Scanning, and Darkroom 05-18-2019, 11:18 AM  
Scanned negatives VS old school prints
Posted By niels hansen
Replies: 11
Views: 718
I have scanned black and white negatives with a canon 8800 scanner. I dont recommend that combo. Pictures are unsharp from 135 film and the prints do not have the same tonal qualities as prints made in a traditional darkroom. Maybe better PP skills would help to improve the grey
values
Sharpness is acceptable from 120 film
Why not try a 100% analogue proces?
Forum: Pentax SLR Lens Discussion 05-02-2019, 02:28 AM  
AF Fine Adjustment question
Posted By niels hansen
Replies: 14
Views: 888
zapp you have a point in calibrating the single objective for the mostly used distance, since af performance is not overly constant. I still would like to know what the measuring angle is in single point, my guess is that som of my problems in portraiture is related to a broader angle than expected
Forum: Pentax SLR Lens Discussion 04-29-2019, 12:28 AM  
AF Fine Adjustment question
Posted By niels hansen
Replies: 14
Views: 888
I think that Steve nails the problem, the imprecising of autofocus.. My best results with af fine tune is some coarse fabric on 100 times the focal length, fully open lens, single point ,shutterspeed 2000 and handheld. That simulates the practical situation. and- hand on the heart- we dont use a tripod as often as we had to
Forum: Repairs and Warranty Service 04-26-2019, 05:36 AM  
Pentax-M 50mm 1.4 focussing moves aperture
Posted By niels hansen
Replies: 2
Views: 434
very usefull video thanks
Forum: Film Processing, Scanning, and Darkroom 03-17-2019, 01:07 PM  
Film developing 101
Posted By niels hansen
Replies: 31
Views: 1,721
I My Canon 8600 scanner is disappointing for scanning 135 films, good enough for 120 films. concerning 135 films I have had better result copying color dias with a m 42 dia copying tool on my k 30. It may be useful to do the same with BW negatives and then invert in photoshop, but I hope you will end up with a traditional darkroom. Second hand it is very cheap.
Forum: Film Processing, Scanning, and Darkroom 03-17-2019, 12:47 PM  
If you had to pick one B&W film to shoot for a while (bulk loading) what would it be?
Posted By niels hansen
Replies: 19
Views: 1,085
I dont consider standing development as a fad. It has existed for many years in different variations. Ansel Adams experimented with semi standing .development. Most authors state that highly diluted developers gives maximum sharpness and has compensating effect. the last couple of days I have developed a very old Ilford Pan f plus. It was exposed as 50 ISO
The development was HC110 standard development 1 + 31,
HC 110 1:100 standing dev 20 degree celsius, shaking 1 min in the beginning and again 1 min after 30 min, total time 60 min.
Rodinal 1.100, standind development.
The results were: all had a minimum of grain, both standing films were equally sharp, but rodinal gave a slight loss of speed and less contrast, but not more than it can be compensated with a harder degree of paper.
The standard development gave slightly less sharpness, without being bad.
Rodinal was little disappointing, because it works extremely well with Rollei films.
It is true that this procedure is more time consuming, the advantage is that it is less affected to imperfections in shaking and temperature. Use the time for reading a paper, drinking coffee and so on.
It is important that the amount of developer is 6 ml, be aware that HC110 comes in different concentrations i Europe and USA. The above is the more concentrated europeen .
Whatever you choose: the best combination is the one you know the best.
Forum: General Photography 03-14-2019, 12:59 AM  
Forgotten Heritage
Posted By niels hansen
Replies: 8
Views: 829
I find the motives an compositions great BUT , in many cases the colors are ugly - maybe too much post processing????
Forum: Film Processing, Scanning, and Darkroom 03-08-2019, 09:55 AM  
If you had to pick one B&W film to shoot for a while (bulk loading) what would it be?
Posted By niels hansen
Replies: 19
Views: 1,085
There is no universal film. My choices are:
rollei 25, ilford fp4plus and rollei 400 infrared, all developed in hc110 1:100 standing development 60 min 20 degrees celsius.

Whatever you choose: make your own test regarding useable iso values with your equipment. standing development is easy to cope with- Agfa rodinal gives nearly identical results.
Forum: Pentax K-30 & K-50 02-11-2019, 01:34 AM  
aperture problems k 30-- a lenses
Posted By niels hansen
Replies: 14
Views: 822
500 poses with Tamron 70 - 300mm on av, auto iso and AF and manually max fstop are all ok. I return if that changes
Forum: Pentax K-30 & K-50 02-07-2019, 01:00 PM  
aperture problems k 30-- a lenses
Posted By niels hansen
Replies: 14
Views: 822
I hope so
Forum: Pentax K-30 & K-50 02-07-2019, 03:24 AM  
aperture problems k 30-- a lenses
Posted By niels hansen
Replies: 14
Views: 822
Thank you for all the answers, here are my reactions
I am retired and on a rather limited pension so I cannot afford a professionel repair, in Denmark it is very expensive .So is another body. I don't think I have the skills for DUI.
I don't agree with uncle vanya that there is a risk of overexposing : the k 30 shutter is fast enough to avoid this if you use auto iso.
I like reh321 s statement which I find logically, and the easiest and cheapest solution. I HOPE that uncle vanya is not right concerning the connection between the two solenoids, and I HOPE that the matter wont be worse as stated by several others.
I will test the camera together with the boy on av, auto iso and max aperture manual from the aperture ring.I guess that 500 poses will give an answer Time will show. I will let you know
Forum: Pentax K-30 & K-50 02-04-2019, 08:18 AM  
aperture problems k 30-- a lenses
Posted By niels hansen
Replies: 14
Views: 822
He has in some aspects - but not all- limited capacities. Therefore the handling must be VERY simple, automatic ISO,jpeg, full manuel aperture and av. All other opportunities are out of reach.That's what worked for me and I hope that this solution is stable, since the solenoid has no work to do.
Normally i go for max quality, but less than that will make him rather happy.
Forum: Pentax K-30 & K-50 02-04-2019, 04:23 AM  
aperture problems k 30-- a lenses
Posted By niels hansen
Replies: 14
Views: 822
My K 30 suffers occasionally of the well known aperture problem. . I have tried to use it with a tamron 70 - 300 mm macro with an aperture ring. I set it on a fully open aperture and AF.
It seems to work well . Can I rely on that every time ?
The reason I ask is that I will lend it to A youngster in the family that wants to photograph animals. He is a week boy that does not deserve too many problems. In this case we want reliabel exposure and AF, its is a minor matter that maximum aperture does not give optimum sharpness . regards
Forum: Pentax SLR Lens Discussion 01-25-2019, 02:41 AM  
Lenses getting heavier?
Posted By niels hansen
Replies: 76
Views: 3,555
The camera industry - and others - want us to buy new equipment. Therefore they need to send new items on the market, telling us that they are much better than items that yesterday were excellent. Sometimes I dout. Are the ultrafast complicated and expensive constructions good value for money.
In the days of m42 they were not.If you bought a 50 mm 1,4 smc takumar instead of 50 mm 1,8, you paid a lot for nothing (perhaps the bokee is a little better - I don't know)
I wonder if this still is the situation today. As earlier written, Opticallimits report, that many ultrafast objectives suffer from focus shift and heavy vignetting which I consider as serious issues
Forum: Pentax SLR Lens Discussion 01-24-2019, 01:47 AM  
Lenses getting heavier?
Posted By niels hansen
Replies: 76
Views: 3,555
Otto Croy writes in Das Contax Buch that just after ww2 many Contax owners got their prewar objectives coated with the result that Zeiss objectives became better than the comparative Leicas. That shows the importance of coating.
The question is: Will a first class objective with a moderate f value have a better transmission than an ultrafast?
Forum: Pentax SLR Lens Discussion 01-24-2019, 12:29 AM  
Lenses getting heavier?
Posted By niels hansen
Replies: 76
Views: 3,555
In the past Canon made a 0.95 objective for their rangefinder camera. It was an awful objective, unsharp and with a bad light transmission. I have seen the same issue with my m42 50mm 1.4 Super Multi Coated Takumar objective no 5446137, the last version. At 1,4 it gives the same lightamount as SMC 50 mm 1.8, measured with Spotmatic and Ricoh Single.
I know that today coating is very advanced, but all other topics equal, more lenses in an objective gives less transmission. Is this fundamental problem solved today?
I hope that my english is good enough to explain a technical matter

---------- Post added 01-24-19 at 12:31 AM ----------

getting older is not the same as getting too old
Forum: Pentax SLR Lens Discussion 01-22-2019, 03:14 AM  
Lenses getting heavier?
Posted By niels hansen
Replies: 76
Views: 3,555
There is much talking about improvements, but are the so called improvements always improvements? An ultrafast lens with heavy vignetting and focus shift -RCA - is a lens with strong restrictions in use. If I want vignetting I go to Photoshop, it is not always that focus shift is compensated by DOF, and the result is lacking focus control and that ain't no good
I have the Sigma 70mm 2,8 macro which IMO is better than the the other faster and more expensive Sigmas.
By the way it's not my problem- money moneymoney
Forum: Pentax SLR Lens Discussion 01-21-2019, 10:07 AM  
Lenses getting heavier?
Posted By niels hansen
Replies: 76
Views: 3,555
No rules without exceptions. If I am walking alone with camping gear I never bring with me my 4 x 5 inc equipment, I have no mule , but there are situations where I would be happy if I had. If I am in my boat I bring all my stuff with me.
I want to make a comparison: does today's flyfishers with sophisticated lightweight gear enjoy fishing more than fishers in the past with heavy wooden rods?
Is photographing today more fun with the ease of use cameras? And most important: is the artistic quality of the pictures today better? Every has his own answer, but it is safe to state, that the amount of technically perfect nonsens has increased because it is costless to make mistakes and people dont know what "delete " means. When I look at my best pictures they are made with all kinds of equipment, from 24X 36 mm slr with only a 50 mm till yesterdays portrait of a grandchild with a KP and 70 mm Sigma
Forum: Pentax SLR Lens Discussion 01-21-2019, 03:47 AM  
Lenses getting heavier?
Posted By niels hansen
Replies: 76
Views: 3,555
I dont understand why smaller and lighter is so desirable in everyday use, I am still not so weak that I cannot carry my equipment, 4 X 5 inch sheet camera, tlr Mamiya and KP, all with 4 lenses. If your camera is a tool you must accept, that quality is not for free in terms of weight . The famous Ansel Adams said that the best camera was the heaviest you would carry. This is still true to a certain degree. If your camera is a "notebook" a mobilephone is useful, and it is at least better than no camera
Forum: Pentax K-1 01-18-2019, 01:20 AM  
Nailing portrait focus with the DFA* 50mm at f1.4
Posted By niels hansen
Replies: 11
Views: 1,279
With f 1,4 the DOF is very narrow, in this case AF ios not guilty
Forum: Site Suggestions and Help 12-23-2018, 02:28 AM  
donation
Posted By niels hansen
Replies: 4
Views: 382
I am a little ashamed to expose my IT ignorance, what is a PM, what am I to do merrey christmas
Forum: Site Suggestions and Help 12-18-2018, 04:14 AM  
donation
Posted By niels hansen
Replies: 4
Views: 382
I have again tried to make a donation WITHOUT paypal, it is still not possible. I use the option creditcard, give the informations but at the bottom I am asked to create an account. I do not create an account, when I try to pay I am told that the PPacount is obligatoire. I do not want a PPaccount for principal reasons
Regards and hope for a solution
Forum: Pentax SLR Lens Discussion 12-17-2018, 02:53 PM  
budget zoom lens much better then SMC Pentax-DA L 50-200mm F4-5.6 ED
Posted By niels hansen
Replies: 16
Views: 1,015
Tamron 70 300 macro is very good value for money, the price on ebay is ridiculous low, mine is 5 years old on k 30 and kp
Forum: Troubleshooting and Beginner Help 11-04-2018, 12:32 PM  
K-30 underexposed pics - is or me or the camera?
Posted By niels hansen
Replies: 31
Views: 1,719
What is the title of Yves regards
Forum: Troubleshooting and Beginner Help 10-30-2018, 02:07 AM  
AF fine tune
Posted By niels hansen
Replies: 18
Views: 1,537
You have a very important point in describing the variations in AF results. Even a well calibrated AF is not foolproof, I have had problems with portraits in silhouette where I dont know if the focus is on the nose or the nearest eyebrow. If the motive has a degree of depth you have to rely on a lucky punch, even if you use single point AF, or go back to MF. Here the problem is my aging eyes and my grandchildrens fast movements
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