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Forum: Kodak Retina and Ektra Rangefinders 04-11-2019
Replies: 23
Views: 2,413
Posted By tvdpid
It says: Retina-Xenar f:2.8/50 mm...

It says: Retina-Xenar f:2.8/50 mm Schneider-Kreuznach 5392421

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Forum: Kodak Retina and Ektra Rangefinders 04-10-2019
Replies: 23
Views: 2,413
Posted By tvdpid
I'm trying a Retina IB type 019 right now in...

I'm trying a Retina IB type 019 right now in Austria. It's one in mint condition, all shutter speeds exactly (!! yesss ex act ly) +1/3 stop. Light meter spot on...
Your pictures look very promising!...
Forum: Leica M Film Cameras 12-27-2018
Replies: 13
Views: 420
Posted By tvdpid
I had a similar issue with my M6 when I changed...

I had a similar issue with my M6 when I changed lenses in hard sunlight.

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Forum: Leica M Film Cameras 12-27-2018
Replies: 13
Views: 420
Posted By tvdpid
I see the 'effect' at the left AND right...

I see the 'effect' at the left AND right side...

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Forum: Kodak Retina and Ektra Rangefinders 12-21-2018
Replies: 4
Views: 463
Posted By tvdpid
Open the back, try to give the thing that...

Open the back, try to give the thing that stransports the film a little turn with your fingers. You will feel and hear a click...If not try turning it back (in the rewind direction) and again...
Forum: Bill Pierce - Leica M photog and author 05-05-2018
Replies: 55
Views: 3,047
Posted By tvdpid
DSLR-scan...easy, fast & top quality do it whith...

DSLR-scan...easy, fast & top quality
do it whith green backlight and you get the sharpest image

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Forum: TLR Forum - Twin Lens Reflex 08-09-2016
Replies: 2,011
Views: 605,360
Posted By tvdpid
The last one of my first...

The last one of my first roll.

https://c2.staticflickr.com/9/8767/28728423065_be807962f5_c.jpg (https://flic.kr/p/KLCFi4)
Detail Schaffense Poort (Diest Belgium) (https://flic.kr/p/KLCFi4) by Tom...
Forum: Film / Developing / Chemistry 08-03-2016
Replies: 22
Views: 1,795
Posted By tvdpid
You can see also a fixed angle in the stripes. Is...

You can see also a fixed angle in the stripes.
Is there some kind of fixed distance between the "clouds of spots and stripes"? You said that the problem is also visible in other frames.
If so, I...
Forum: Film / Developing / Chemistry 08-02-2016
Replies: 22
Views: 1,795
Posted By tvdpid
The spots are identical ...

The spots are identical ...
Forum: Photography General Interest 07-30-2016
Replies: 8,885
Views: 867,107
Posted By tvdpid
Yashica D (1959)

Yashica D (1959)
Forum: Leica Screw Mount / LTM Cameras 07-23-2016
Replies: 2,125
Views: 591,641
Posted By tvdpid
My first :) ......

My first :) ... irresistible

https://c3.staticflickr.com/8/7753/17382859938_6b357f1860_h.jpg (https://flic.kr/p/su4GDG)"Cool! How do you turn it on, dad?" (https://flic.kr/p/su4GDG) by Tom Van de...
Forum: W/NW Words no Words. 07-23-2016
Replies: 826
Views: 140,368
Posted By tvdpid
https://c3.staticflickr.com/1/339/19611286946_03ac...

https://c3.staticflickr.com/1/339/19611286946_03acec9d6a_k.jpg (https://flic.kr/p/vSYYn1)Bike (https://flic.kr/p/vSYYn1) by Tom Van de Peer (https://www.flickr.com/photos/[email protected]/), on Flickr
Forum: Leica M Film Cameras 07-21-2016
Replies: 4,569
Views: 1,304,111
Posted By tvdpid
https://c1.staticflickr.com/2/1554/26369694872_c77...

https://c1.staticflickr.com/2/1554/26369694872_c77c9ef7fc_h.jpg (https://flic.kr/p/GbczzA)Two brothers (https://flic.kr/p/GbczzA) by Tom Van de Peer (https://www.flickr.com/photos/[email protected]/), on...
Forum: Leica M Film Cameras 07-21-2016
Replies: 4,569
Views: 1,304,111
Posted By tvdpid
https://c3.staticflickr.com/4/3740/19449466050_25e...

https://c3.staticflickr.com/4/3740/19449466050_25e32c825a_k.jpg (https://flic.kr/p/vCFADy)Riksja (https://flic.kr/p/vCFADy) by Tom Van de Peer (https://www.flickr.com/photos/[email protected]/), on Flickr
Forum: Leica M Film Cameras 07-21-2016
Replies: 4,569
Views: 1,304,111
Posted By tvdpid
https://c4.staticflickr.com/8/7770/18054140339_2a5...

https://c4.staticflickr.com/8/7770/18054140339_2a57677b7e_h.jpg (https://flic.kr/p/tvobVH)What are you pointing at me, daddy? (https://flic.kr/p/tvobVH) by Tom Van de Peer...
Forum: Leica M Film Cameras 07-21-2016
Replies: 4,569
Views: 1,304,111
Posted By tvdpid
https://c3.staticflickr.com/8/7730/18125476786_742...

https://c3.staticflickr.com/8/7730/18125476786_742dc90593_b.jpg (https://flic.kr/p/tBFNLs)Vintage (https://flic.kr/p/tBFNLs) by Tom Van de Peer (https://www.flickr.com/photos/[email protected]/), on...
Forum: Optics Theory - 07-19-2016
Replies: 52
Views: 5,203
Posted By tvdpid
Thanks mrmeadows & bmattock. Every theory has...

Thanks mrmeadows & bmattock.

Every theory has its value.
My brother who has little experience in photography recently asked me if there is an easy way to get an idea of the DOF. He doesn't have any...
Forum: Fuji X-100 Series 07-18-2016
Replies: 133
Views: 63,790
Posted By tvdpid
https://c8.staticflickr.com/9/8826/16456245623_52d...

https://c8.staticflickr.com/9/8826/16456245623_52dd8eba4e_b.jpg (https://flic.kr/p/r5byuP)Oogappeltje (https://flic.kr/p/r5byuP) by Tom Van de Peer (https://www.flickr.com/photos/[email protected]/), on...
Forum: Fuji X-100 Series 07-18-2016
Replies: 2,531
Views: 624,445
Posted By tvdpid
https://c8.staticflickr.com/9/8826/16456245623_52d...

https://c8.staticflickr.com/9/8826/16456245623_52dd8eba4e_b.jpg (https://flic.kr/p/r5byuP)Oogappeltje (https://flic.kr/p/r5byuP) by Tom Van de Peer (https://www.flickr.com/photos/[email protected]/), on...
Forum: Optics Theory - 07-18-2016
Replies: 52
Views: 5,203
Posted By tvdpid
Hi Roger, Please show us some evidence that...

Hi Roger,

Please show us some evidence that proves your conclusion.

Thanks,
Tom
Forum: Optics Theory - 07-18-2016
Replies: 52
Views: 5,203
Posted By tvdpid
I think it's a Dutchification by my side ......

I think it's a Dutchification by my side ... although I am not Dutch :)
Maybe one writes "maths" just to exaggerate its difficulty ... :)
Forum: Scanners / Scanner Software 07-18-2016
Replies: 50
Views: 4,346
Posted By tvdpid
DSLR-scan ... Since I tried it, I put aside my...

DSLR-scan ...
Since I tried it, I put aside my Epson scanner ...
It is so much faster, so much better ...
One roll in 5 minutes ...
Forum: W/NW Words no Words. 07-17-2016
Replies: 494
Views: 44,712
Posted By tvdpid
https://c3.staticflickr.com/8/7730/18125476786_742...

https://c3.staticflickr.com/8/7730/18125476786_742dc90593_b.jpg (https://flic.kr/p/tBFNLs)Vintage (https://flic.kr/p/tBFNLs) by Tom Van de Peer (https://www.flickr.com/photos/[email protected]/), on...
Forum: Optics Theory - 07-17-2016
Replies: 52
Views: 5,203
Posted By tvdpid
:) You're right. But there is a difference...

:) You're right. But there is a difference between math and applied math. :)
A year ago, I started to collect "things without batteries", like side rules, a leica iiig, an adiphot lightmeter...etc. I...
Forum: Optics Theory - 07-17-2016
Replies: 52
Views: 5,203
Posted By tvdpid
@mrmeadows Maybe I should read Mr. Merklingers...

@mrmeadows
Maybe I should read Mr. Merklingers book again, but what I understood is that he completely leaves the theories and ideas about any circle of confusion. In Chapter 3 he illustrates its...
Forum: Optics Theory - 07-17-2016
Replies: 52
Views: 5,203
Posted By tvdpid
For me math IS fun. Even slide rules are...

For me math IS fun. Even slide rules are fun.
Being able to calculate and explain why some settings didn't give you the picture you had in mind creates precisely the skills you're lacking.

For me it...
Forum: Optics Theory - 07-16-2016
Replies: 52
Views: 5,203
Posted By tvdpid
Since the head of a pin has a diameter of 0,03...

Since the head of a pin has a diameter of 0,03 mm, I'd advice you to put 1/3th of the angels in the first 0,01 mm and the rest in the following 0,02 mm. I think you will be able to get them all in...
Forum: Optics Theory - 07-16-2016
Replies: 52
Views: 5,203
Posted By tvdpid
When I unlock the infinity lock of my Summaron 35...

When I unlock the infinity lock of my Summaron 35 mm f/2.8. I can turn a little further than infinity (as described by Merklinger). This could also explain why there is a lock.
Forum: Optics Theory - 07-16-2016
Replies: 52
Views: 5,203
Posted By tvdpid
Note that we never talked about film or sensor...

Note that we never talked about film or sensor size nor print size ... you don't need to...
We think of disks of confusion in "object space" instead of circles of confusion in "image space".
Forum: Optics Theory - 07-16-2016
Replies: 52
Views: 5,203
Posted By tvdpid
You can easily use these formulas to calculate...

You can easily use these formulas to calculate e.g. which aperture you would need to blur out the background completely. The classic DOF scales won't tell you. That blurring out relates to the size...
Forum: Optics Theory - 07-16-2016
Replies: 52
Views: 5,203
Posted By tvdpid
I will give the formulas a try: (If you want all...

I will give the formulas a try:

(If you want all the details that take all small deviations like field curvature etc. into account --> see Merklingers book / acticles)

f = focal length
N = aperture...
Forum: Optics Theory - 07-16-2016
Replies: 52
Views: 5,203
Posted By tvdpid
I saw on google maps that the horizontal distance...

I saw on google maps that the horizontal distance between the cross on the san marco and the front of the palace is ca. 115 m. I guess you stood ca. 250 m away from that cross.
Forum: Optics Theory - 07-16-2016
Replies: 52
Views: 5,203
Posted By tvdpid
@Richard G Probably this was taken with a 50 mm...

@Richard G
Probably this was taken with a 50 mm lens?
Maybe we can explain 'the ideas' based on your photo with some formulas ...
Forum: Optics Theory - 07-15-2016
Replies: 52
Views: 5,203
Posted By tvdpid
Wow Richard, this is not easy. Maybe I may tease...

Wow Richard, this is not easy. Maybe I may tease people who haven't read Mr.Merklingers articles/book yet by asking the following:

If an object lies beyond the DOF boundaries given by the app you...
Forum: Optics Theory - 07-15-2016
Replies: 52
Views: 5,203
Posted By tvdpid
Of course you're right. If they are happy, it's...

Of course you're right. If they are happy, it's OK. We are happy too.
Forum: Optics Theory - 07-15-2016
Replies: 52
Views: 5,203
Posted By tvdpid
@bmattock Thank you for your replies. I have...

@bmattock
Thank you for your replies. I have exactly the same idea. As I'm not a 'native speaker' I cannot express it better than you do.
What I learned from Mr. Merklinger are the tools (really easy...
Forum: Optics Theory - 07-15-2016
Replies: 52
Views: 5,203
Posted By tvdpid
"The ins and outs of focus" by Harold M. Merklinger

Anyone ever read "The ins and outs of focus" by Harold M. Merklinger?
This book rendered all DOF apps and theories obsolete to me.
Same experience?
Thanks,
Tom
Forum: Voigtlander Lenses and Images 07-15-2016
Replies: 23
Views: 4,454
Posted By tvdpid
Since I've read "The ins and outs of focus" by...

Since I've read "The ins and outs of focus" by Harold M. Merklinger, I never use any DOF app or DOF scale on lenses anymore. You can easily find a pdf version on the web.
I can highly recommend to...
Forum: Business / Philosophy of Photography 05-09-2016
Replies: 37
Views: 4,032
Posted By tvdpid
Reason can't beat emotion ... but my purse can...

Reason can't beat emotion ... but my purse can :)

I shoot film with IIIg and M6 and, within a few weeks, I will mount my lenses on a Nex 5N as well ... my little poor man's M9 :)
Forum: Scanners / Scanner Software 04-12-2016
Replies: 50
Views: 4,564
Posted By tvdpid
Don't scan --> Shoot the negatives with a DSLR....

Don't scan --> Shoot the negatives with a DSLR. Better quality (in comp. with my V500), much faster.
Forum: Scanners / Scanner Software 04-11-2016
Replies: 13
Views: 1,358
Posted By tvdpid
Pics belonging to the two histograms in previous...

Pics belonging to the two histograms in previous reply.
These are the green channels straight out of the camera. No noise reduction, no sharpening. Just inverted the negative image.
The flattest is...
Forum: Scanners / Scanner Software 04-11-2016
Replies: 13
Views: 1,358
Posted By tvdpid
Two histograms which illustrate previous reply....

Two histograms which illustrate previous reply. Find the 7 differences ...
(I know, things may be subtle, but the difference in tonal range is not ...)
The first histogram is the green channel of the...
Forum: Scanners / Scanner Software 04-11-2016
Replies: 13
Views: 1,358
Posted By tvdpid
I was inspecting the histograms of the 'scans' I...

I was inspecting the histograms of the 'scans' I made with the white and the green light source and what I see is that the pixels from the scans I made with the green source cover a significantly...
Forum: Scanners / Scanner Software 04-11-2016
Replies: 13
Views: 1,358
Posted By tvdpid
Of course I know that white light consists of...

Of course I know that white light consists of red, green and blue RGB(255,255,255) :), but because of the Bayer pattern which consists of 50% green pixels, it could be possible that a lack of red and...
Forum: Scanners / Scanner Software 04-11-2016
Replies: 13
Views: 1,358
Posted By tvdpid
Hi sevo, Thanks for your reply. I forgot to say...

Hi sevo,
Thanks for your reply.
I forgot to say that I only use the green channel of the shots in green/white light. The red and blue channels are crap when shot in green light.
There is a...
Forum: Scanners / Scanner Software 04-11-2016
Replies: 13
Views: 1,358
Posted By tvdpid
DSLR scan with green light source

Hi,
I am relatively new to B&W film-photography.
I develop the negatives myself and used the Epson V500 to scan them.
I read lots of articles on ‘scanning secrets’ and post-processing and tried them...
Forum: Scanners / Scanner Software 04-08-2016
Replies: 74
Views: 51,727
Posted By tvdpid
I replaced my Epson V500 by my Nikon D90 + 9 mm...

I replaced my Epson V500 by my Nikon D90 + 9 mm extension tube + M42 to Nikon-F-mount adapter + M39 tot M42 adapter + Leitz Elmar 5cm f3.5
My V500 cannot meet the quality of those dSLR 'scans'.
I...
Forum: RFF Polls 04-08-2016
Replies: 395
Views: 74,193
Posted By tvdpid
Leica IIIg + Elmar 5cm f3.5 Leica M6 + Summaron...

Leica IIIg + Elmar 5cm f3.5
Leica M6 + Summaron 35mm f2.8

regards,
Tom
Showing results 1 to 48 of 48

 


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