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Large Format • Re: Testing the equipment.

Recent Forum Posts - Sat, 11/17/2018 - 00:02
Argh! You just spolied my next trick!!

Statistics: Posted by alexvaras — Sat Nov 17, 2018 12:02 am

Large Format • Re: Testing the equipment.

Recent Forum Posts - Fri, 11/16/2018 - 22:38
Orrrrr, you could just duck behind the camera.

PF

Statistics: Posted by PFMcFarland — Fri Nov 16, 2018 10:38 pm

Large Format • Re: Testing the equipment.

Recent Forum Posts - Thu, 11/15/2018 - 23:26
PFMcFarland wrote:
You could use one of those air bulb releases with three to five meters of hose on it. Or quit shooting in front of mirrors.

PF

I will keep shooting at that spot, it's the brightest in the school, next time I will smile to camera

Statistics: Posted by alexvaras — Thu Nov 15, 2018 11:26 pm

Large Format • Re: Testing the equipment.

Recent Forum Posts - Thu, 11/15/2018 - 22:43
You could use one of those air bulb releases with three to five meters of hose on it. Or quit shooting in front of mirrors.

PF

Statistics: Posted by PFMcFarland — Thu Nov 15, 2018 10:43 pm

Large Format • Re: Testing the equipment.

Recent Forum Posts - Thu, 11/15/2018 - 09:23
These are excellent, Alex. I am sure that your subjects in number one would like a print.

Statistics: Posted by jamesmck — Thu Nov 15, 2018 9:23 am

Large Format • Re: Testing the equipment.

Recent Forum Posts - Thu, 11/15/2018 - 05:37
Hi all,

Four portraits and in addition of the previous lenses a very old Goerz Berlin Doppel Anastigmat series III 180mm (This is mine already, it came with a Fotocord 1)
Ilford Delta 100, EV was 9 so I went down to f11 and 1/4 or 1/3 sec. It was difficult for the models (colleagues thanks a lot!!) ad they were nervous, the Tessar one moved a little her head. Focusing it was very hard and I'm not sure if I did it right.
I think should have gone to f16.
The worst thing was me showing off my little hairs on the portraits, now I'm sure I'm not a vampire.


Plaubel Heli Orthar f6.3 No.4 - Rear lens.


CZJ Protarlinse Serie VII 18cm - Rear lens.


GB Dopp. Anastigmat 180mm.


Tessar 175mm.

And now backstage photos.

Newbie about to make a mistake.


Getting distracted by audience.

Conclusions about the lenses, surprised (in a good way) by the GB Doppel Anastigmat 180mm, nice Tessar as usual and no conclusive about if buying Protar or Heli-Orthar, I would have more chances to shoot with Heli Orthar, it covers much better 4x5 with one or two lenses, Protar get vignetting with both lenses.
One more test to do, middle-close landscape.

Please comment if you see more mistakes and thank you for watching.
Alex

Statistics: Posted by alexvaras — Thu Nov 15, 2018 5:37 am

Large Format • Re: Testing the equipment.

Recent Forum Posts - Thu, 11/15/2018 - 02:11
jamesmck wrote:
alexvaras wrote:Julio1fer wrote:The second one has a noticeable vertical streak in the right-hand half.

Alex - I saw that streak, too. Maybe you could take that negative back to the lab to see if they can determine whether it is on the negative or not.
Yes Julio and James, that streak is from the lab as well the marks from the Jobo tank, they said they are very sorry and they developed&scan these next 4 photos in 2 days and not in 5 as usual, no defects this time.

Statistics: Posted by alexvaras — Thu Nov 15, 2018 2:11 am

Large Format • Re: Testing the equipment.

Recent Forum Posts - Sun, 11/11/2018 - 10:39
jamesmck wrote:
alexvaras wrote:Julio1fer wrote:The second one has a noticeable vertical streak in the right-hand half.

Alex - I saw that streak, too. Maybe you could take that negative back to the lab to see if they can determine whether it is on the negative or not.
Thank you for the tip James, I will.
In LGFF forum saw as well both long sides there are marks from the Jobo tank as one user said.

Statistics: Posted by alexvaras — Sun Nov 11, 2018 10:39 am

Large Format • Re: Testing the equipment.

Recent Forum Posts - Sun, 11/11/2018 - 08:37
alexvaras wrote:
Julio1fer wrote:The second one has a noticeable vertical streak in the right-hand half.

Alex - I saw that streak, too. Maybe you could take that negative back to the lab to see if they can determine whether it is on the negative or not.

Statistics: Posted by jamesmck — Sun Nov 11, 2018 8:37 am

Large Format • Re: Testing the equipment.

Recent Forum Posts - Sun, 11/11/2018 - 07:59
I just took a look at the negatives, Heli-Orthar (rear lens) is an step over Tessar in sharpness being Protar the third.
I'm going to shoot again for a closer subject, not portrait.

Statistics: Posted by alexvaras — Sun Nov 11, 2018 7:59 am

Large Format • Re: Testing the equipment.

Recent Forum Posts - Sun, 11/11/2018 - 00:14
The Heli-Orthar looks much better in the corners than the Protar or Tessar. Hard to tell for sure about the centers though because of the over exposures, though the rear lens version appears fine.

PF

Statistics: Posted by PFMcFarland — Sun Nov 11, 2018 12:14 am

Large Format • Re: Testing the equipment.

Recent Forum Posts - Sat, 11/10/2018 - 13:25
Julio1fer wrote:
Alex, sharpness looks about the same in these scans (maybe the first one is a bit worse). There might be a hint of vignetting in the 130mm, left down corner, but I am not sure.

The second one has a noticeable vertical streak in the right-hand half, but that cannot be a lens issue.

Tones and contrast are highly determined by scanning - you would evaluate these better by looking at the negatives.

Julio, as usual you have a superb eye (or two ) I got the negatives but it's difficult for me to understand the negative image, I need to practise to understand the real photo.
You are right about the vignetting, probably I didn't place the lens correctly because it "should" cover it.

Statistics: Posted by alexvaras — Sat Nov 10, 2018 1:25 pm

Large Format • Re: Testing the equipment.

Recent Forum Posts - Sat, 11/10/2018 - 13:07
Alex, sharpness looks about the same in these scans (maybe the first one is a bit worse). There might be a hint of vignetting in the 130mm, left down corner, but I am not sure.

The second one has a noticeable vertical streak in the right-hand half, but that cannot be a lens issue.

Tones and contrast are highly determined by scanning - you would evaluate these better by looking at the negatives.

Statistics: Posted by Julio1fer — Sat Nov 10, 2018 1:07 pm

Large Format • Re: Testing the equipment.

Recent Forum Posts - Sat, 11/10/2018 - 08:21
Hi all,

Still testing lenses for 4x5. Shot at 1/25seg f16, two last not well exposed, I guess I didn't placed the shutter speed correctly, it has no ring for speeds and only dots (next time I will bring a better speed note for it).


1 - Protar 180mm, rear lens only


2 - Tessar 175mm


3 - Heli-Orthar 150-160mm? Rear lens only


4 - Heli-Orthar 130mm Both lenses.

Regardless the last two ones exposition, which lens please you more? Tone, contrast, sharpness, etc.
If you have any other consideration please go ahead.
Btw, I did not the develop/scan, soon I hope I start doing both. Photos haven't been corrected (Ps, Lr, etc)

Thank you for watching.
Alex

Statistics: Posted by alexvaras — Sat Nov 10, 2018 8:21 am

Large Format • Re: R. Konishi Half-Plate Field Camera.

Recent Forum Posts - Fri, 11/09/2018 - 04:46
I have seen glass fronted film holders in some large format cameras, particularly older ones. The film sheet was difficult to keep perfectly flat otherwise. The glass used was optically flat so beware to take care of it.

Statistics: Posted by GrahamS — Fri Nov 09, 2018 4:46 am

Large Format • Re: R. Konishi Half-Plate Field Camera.

Recent Forum Posts - Thu, 11/08/2018 - 06:33
Yes, I've never paid for scanning. I have a V700 (follow-on to the 4990, very similar) and am happy enough with it. If I ever produce something I really want to enlarge, I can pay to have it drum scanned, but I haven't seen the need yet.

Robert

Statistics: Posted by Brazile — Thu Nov 08, 2018 6:33 am

Large Format • Re: R. Konishi Half-Plate Field Camera.

Recent Forum Posts - Wed, 11/07/2018 - 09:23
Nice trick shooting the ruler at 45 degress, thank you!
The paper method was the one I was thinking when buying this camera, Im not sure about film negative option yet.
If I find a 5x7 set develop set gor negative that goes for this sizes I could start looking, I need to ask on forums and/or go to shops and try myself with self cut film and try it with the set available at the moment.
Also the next step is to take an Epson 4990 valid up to 8x10 and skip paying the lab for scanning.

Statistics: Posted by alexvaras — Wed Nov 07, 2018 9:23 am

Large Format • Re: R. Konishi Half-Plate Field Camera.

Recent Forum Posts - Wed, 11/07/2018 - 07:00
Looks like a nice old camera, Alex. Yes, the ground side of the glass goes toward the lens. One of the first things you'll want to do is validate that by testing the registration of the ground glass vs the film plane via the usual method of aiming down 45 degrees at a specific mark on a ruler or longer measuring stick, exposing a sheet, developing it, and checking the result.

I haven't seen a glass backing for the film plane, but I am far from an expert on cameras of this type. Steven Tribe on LFPF would be the person I'd look to for expertise in these older European models.

Half-plate film is hard to come by, but a) Ilford does a special-size cutting once a year, so it's possible, b) I've seen whole plate film still available in several places (I have a box for my one whole plate camera, a Seneca, which I haven't tried yet) and you could cut it. But your idea of just registering a sheet of 4x5 is by far the easiest and cheapest way to go, short of cutting down X-ray film, or just shooting paper negatives to start. That latter is one I'd be tempted to do in your position.

Have fun, and keep us posted...

Robert

Statistics: Posted by Brazile — Wed Nov 07, 2018 7:00 am

Large Format • Re: R. Konishi Half-Plate Field Camera.

Recent Forum Posts - Tue, 11/06/2018 - 22:56
I sure you'll have it in top shape before long, Alex.

PF

Statistics: Posted by PFMcFarland — Tue Nov 06, 2018 10:56 pm

Large Format • R. Konishi Half-Plate Field Camera.

Recent Forum Posts - Tue, 11/06/2018 - 15:04
Here it's the camera, two lenses, tripod and three double film holders.

R. Konishi field camera.

The lens has four elements, rear two cemented, front ones spaced. Still I need to clean them and fix the light leak from the lens thread at the wooden holder.


Bellows are ok after so many years.


The ground glass, its matte side is at the outside, is this ok or should I place it looking inside?


I checked one and it's light tight, lets see other ones. Anyway until I don't shoot I won't know for sure.


Another surprise for me, it has a glass inside to make the film plane, is this a normal thing?
Dimensions of the film are 12x16.5, half plate as many some said before. Hard to get I think, anyway I will place a 4x5 film in the middle and I make the test, or is it worthless?


A very nice tripod with very nice points to stand still on soil, wooden floors but not ceramic as my house.


Another lens came, Universal Rapid Aplanat Series E No.3, two elements?

So two questions to start with:
1) Glass inside the film holder?
2) Ground glass mate side inside or outside.

The cleaning will come after I fix(glue) the shutter plate guides at the front, some did force and both of them have cracks about to fall apart, so now the camera is opened and shutter holder plus bellows removed to avoid more tension on this part, tomorrow fine day, later cleaning and weekend shooting if I can place a 4x5 sheet inside in my dark bag.

Thank you for watching and please any advice is welcome.
Alex

Statistics: Posted by alexvaras — Tue Nov 06, 2018 3:04 pm

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