Derev Pan 100 (Film Photography Project)

This is Derev Pan 100 supplied by the Film Photography Project for around £9.99 a roll for 36 exp.
I wanted to know who makes the film, or what manufactured brand film is inside. On their website FPP say ‘DEREV is named after the forests of the Ukraine, its country of origin as a scientific aerial photographic film’.
Svena used to be a main manufacturer of photographic supplies, including film, but went bust in 2000 and the equipment today is used by Astrum. I’ve read that Astrum use the equipment to cut tech film from AGFA and Kodak. Not sure how true that is. Astrum also make Svema branded films.
There are Svema Foto 400, 200, 100, Mz3 (ISO 3) and also a 64. All available at Analogue Wonderland.
I have used Astrum before. Astrum 400 is a very nice film. Very thin but renders great contrast and tonality. I checked my Derev negatives against my Astrum 400 negatives and the base is slightly thicker, but still not as thick as say Ilford or Kodak films. I’ve not tried Astrum 100 so I can’t compare the two.
So for now I am guessing Derev 100 is Astrum/Svema 100 re-labeled.
Looking at the Astrum packaging I wouldn’t have touched it as they look like cheap Russian/Ukrainian films. However, being rebranded for the Western side of the globe the packaging seems more appealing and trustworthy so well done to the Film Photography Project and it’s re-sellers for bringing this film onto the market. It won’t disappoint.
Like I said I have tried Astrum 400 as it was sent to me, and I liked it a lot.


So on with the Derev 100 Film. I went out and shot a roll at the local train station. Train stations are usually boring but over here on the Isle of Wight they are still pretty much as they were when trains were ran by steam! So you’re not short of nostalgia if you look for it.
As expected the film negatives did start with light leaks around the sprocket holes. This is because the film is quite thin and rolled into normal 35mm film cassettes. But it doesn’t leak into the frames so that’s good.

And the images themselves are sharp and full of tonality with, I find, a creamy, punchy look. Here are some scans of the images I took.
Camera – Nikon f90X.
Developer – XTOL Stock 9 minutes.
Conditions – Light Overcast
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Silberra 75N+ (74N+) ORWO

Here is the Silberra 74N+ 400 speed film.
It’s actually manufactured by Filmotec in Germany and released as ORWO N74+. A ‘Motion Picture’ film which is released by Filmotec in 100 ft rolls. Great if you are a bulk loader. If not then other companies, such as Silberra, re-package the film pre rolled and into 36 exposure cassettes. However, it’s now discontinued and sold as ORWO N75+ and rated at 320 ISO/400ISO.
Analogue Wonderland sell the Silberra branded version (New Cassettes, DX Coded) of ORWO’s N75+ for around £12 a roll. Nik & Trick sell their own version of the ORWO N75+ for around £6.80 (30 exp – No DX Code-Used Cassettes) however, if you are into saving and can bulk load you can buy a 100ft roll from Nik & Trick for around £80 which will give you 18 rolls for around a fiver (£5). Massive saving! Especially compared to Silberra’s Package. Silberra use brand new cassettes and their versions are DX coded, handy for the point and shoot cameras!
Whilst I am in no way an expert on this film or working with the two companies suggested above I have recently been shooting ORWO film and the research above is my own if in the future I decide to shoot more of the stuff. But I do like it!
So I went out and shot a roll of ‘Silberra 74N+/ORWO discontinued N74+ to see what it’s like. To be honest I could see no difference between this film or my experiences with Ilford HP5+. A bit more punchy in the black areas if anything swaying more towards Kodak Tri-X- 400. So I went out and shot some scenes late in the afternoon. The sun was low but still quite bright.
I developed the film in my XTOL replenished soup for 7 minutes. The negatives came out well and here are scans I made of the film. I have yet to take the negs in the darkroom but when I do I can expect some deep blacks, bags of latitude and tones and some grain in the prints.
Camera – Nikon F90X
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Rollei RPX 25 Film
Recently I shot some long exposures on Rollei RPX 25 Film. It was early morning with beautiful clouds and to help with getting past the 1 second mark I added a Red Filter and also a Polorising Filter to my lens.
I developed the film in my replenished XTOL stock for 6.5 minutes at 20°.
Negatives came out well with very fine grain. I had to pre-wash the film first to get rid of the anti dilation dye that I know is quite heavy on this film. I didn’t want that colour to get into my XTOL STOCK.

The reciprocity failure times were not bad at all. I found some information online for this.

Here are the scans from that shoot. I don’t use a professional scanner but the scans give me an alternative reference to a contact sheet.
You will see I bracketed my shots starting with 3 second exposure, the 1 second then 6 seconds. And here is the YouTube video associated with me shooting this film.
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ORWO UN54 35mm FILM

I have had two rolls of ORWO UN54 (1oo) 35mm B&W Film for some time and have been waiting for a time where I can shoot the film and feature it on the SFLaB channel.
Like any other photographic films I am not used to I have to do a little research, mainly it’s characteristics and other users reviews also. And the big question, if I like it where can I buy it!
What I know so far
It’s a Black and White Panchromatic Film manufactured in Germany by a company called ‘Filmotec’ and is manufactured for motion picture cinematography. The company says it can be processed as black and white reversal film and be used to produce direct positives.
You can’t buy it from the factory as 35mm film rolled into cassettes for photographic cameras. It is sold in bulk reels. So you either need to find supplier that has bulk loaded the film into 35mm cassettes for photography or buy a 100ft reel, as seen above, and bulk load yourself, if you know how and to be honest, I don’t. So if I like the film I will have to look for someone that has pre rolled into camera film cassettes. I found online there are a few suppliers one being ‘The Film Photography Project’ which sells the rolls for $7.99. And also Nik and Trick here in the UK for £6.60.
If you do want to buy a 100ft reel and bulk load yourself then they seem to be more available and I can get a 100ft reel here in the UK from Nik & Trick for £61.99 inc VAT. I guess I can get 18 rolls from that 100ft reel so I can shoot a 36 exp roll for £3.44 with a bit left over for fun. Then of course you need a bulk loader and empty film cans. I’m sure if you hunt around you can buy these for pennies in bulk but if you’re like me I save a lot of my 35mm film cassettes with a small strip of film hanging out, in case I ever want to bulk load.
It’s easy to save your used cassettes for bulk loading. Just don’t crack the cassette open when you develop your film. Load the film onto your spool whilst it’s still inside the cassette and when you come to the end just cut the last frame leaving some hanging from the film. You do, however, need to rewind the exposed film carefully inside the camera so you leave the leader hanging out of the film. You can usually hear the film come off the advancing cogs inside the camera as you rewind back. Thats when you know the film has been rewound, light tight and just the leader hanging out.

Some cassettes are have twist-off lids which are great for no fuss bulk loading. Not so popular to find though.

So, with this research out of the way I’m off to shoot the film. And you can see me shooting the film and developing the negatives and some prints on the SFLaB YouTube channel.
I have already made a developing test using my Replenished Kodak Xtol developer and I found best results for my development is 6 minutes at 20°. This is a stock solution. I could not find a stock time on the massive dev chart. Only 1:1 for XTOL.
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Black Lives Matter IOW
Peaceful gathering on the Isle of Wight 5th June 2020.
Camera – Olympus OM20, Film, Kodak Double X, XTOL Stock 10 minutes.
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Silberra Ultima 160 Film

Camera – Olympus OM20
Manual Mode Sekonic Metering
XTOL Replenished Developer
Bright Sunny Day/Hot
Kenro Scanner
I shot this film on a bright sunny hot day in June 2020 using the Olympus OM20 and metered all images at 160 with a Sekonic Meter. I developed the negatives in my replenished XTOL soup for 6.5 Minutes with 5 inversions every minute at 20°.
The negative material is very thin but easily manageable. I had no problem loading the film onto my Patterson reel. The film base was very clear, although I did prewash the anti hilation dye from the film before I developed. Didn’t want that getting in my XTOL.
The negatives came out looking good. To be honest I think I could have left them for another minute in the developer just to build a bit more in the highlights but overall I was impressed with the sharpness, tonal range and detail. I have yet to make prints, however, looking at the scans and especially the negatives they are going to print well with hardly any noticeable grain.
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Pinhole Photography Exposure
Pinhole Photography Exposures and Reciprocity Failure
When I first got my pinhole camera calculating the long exposures confused the hell out of me.
I Purchased a Lerouge 66 Pinhole camera from Greenwich Cameras in London.

I remember asking the guy on the stall about exposure times and he gave me a handy little leaflet which was a rough “Guesstimate” of how to expose a 100 speed film. Here is what the guide said.
For 100 Speed Film
- Bright Sunshine – 2s
- Hazy Sunshine – 4s
- Cloudy Bright – 8s
- Cloudy – 15s
And thats it.
These exposures depend on the camera you are using and in particular it’s pinhole size. My Lerouge 66 has a pinhole size of 0.2mm, and Aperture of f.150 and a focul length of 30mm.
I wanted to know more and in particular various film speed calculations and of course, reciprocity failure times.
I downloaded an app for my android phone called… wait for it… Pinhole!

It’s a relatively easy app to use and by far the only one I really understood. All you need to know is your camera’s set up.
So within the app you input your Focul Length (30mm). Pinhole Diameter (0.2mm) F Stop (f.150) Film size (120) and the speed film. The app will then give you a range of shutter speeds and corrisponding f number.
You can also save these settings.
So for example. Here is my set up within the app for FP4.

You can save this information and name it for easy access another time.
Swipe left and you will be greeted with the exposure scale.

If you press the F Stop button (top left) it will increase to the next stop. But I always leave it on f.5.6 and I meter for f.5.6. and whatever speed my light meter suggests at f.5.6 then I convert it to the pinhole speed on the right. It’s quite simple.
Then on top of that speed you need to allow for any reciprocity failure.
I have made myself a cheat sheet for my reciprocity failures on various films for this camera. You can usually find a films reciprocity failure compensation on the films data sheet online. Ilford have quite an easy chart for reciprocity failure.


So on the chart above you need to work out ’to the power of’ on a scientific calculator. So for example if we look at FP4 we can see it says 1.26
All you need to do is use this simple calculation.
If my metered exposure for FP4 at EI 125 and at f5.6 is 1/60th I look at the Pinhole Chart and it says convert to 11 Seconds. I now need to work out the Reciprocity failure.
On a Scientific Calculator (I use an App) I input 11 (xy) 1.26 and it returns 20.518 933 468 365 3. In short 20.5 Seconds. And that would be my correct exposure for my scene.

I have used this system for all of my pinhole photography and so far have had good results. I am not sure how accurate the app is but it seems to work quite well.
Photography Competition

Lockdown Compotition.
Let’s have some fun with our Photography!
As probably most of us are in Isolation at the moment and our Photography is either on hold or being challenged Ithought it would be great to get our creative minds ticking with a Lockdown Photography Compotition. Simple really. You send your ONE best lockdown Photograph into us here at SFLaB and we will get two other inspirational YouTubers
to help find the best FIVE photographs and a Winner. Winners will be announced in May on the SFLaB Channel.
Subject
The subject matter must be taken within or from your own home boundaries.Either indoors, your front or back yard or views taken from your front/back yard.
Medium
It’s up to you what you shoot it on. Film, Digital, Polaroid, Smartphone. Colour or Black and White. All we ask is you re size your image to 1200px long edge and at least 240DPI.
Closing Date
Entries to be in by 31st April 2020
So get thinking and shooting and email your Photographs to roglowe147@gmail.com along with the date and location of the photograph.
Photographs should be resized to 1200px and be at least 240DPI. Entries must be in by 31st May 2020 and the Winners will be anounced on the SFLaB Channel in May.
Ideas
- Look for interesting compositions, low down, high up
- Stare around you for a while and look at objects that you’d never think would look interesting as a Photograph. They probably would.
- Think about lighting. If you don’t have all the latest gear try using natural daylight coming in from a window or using a lamp or a flash light. You can always diffuse using a piece of white paper.
- Try making your own interesting backgrounds for an object.
Halina 35X Film Camera
My friend found this little gem at a bootsale amongst a pile of junk. The Halina 35X 35mm Film Camera from 1959.

I do like an old camera. But only if it works! I’m not one for buying a camera only to gather dust. If I own a retro camera I want to know that I can use it when I want to and still get great results. And that is exactly what this did.
At first glance is was in a real sorry state. Very dirty and sticky. Nothing that a bit of metal polish couldn’t fight. The tricky part is the mechanics. Do the aperture blades open and close? Is the shutter mechanism working? Does it fire!?

Well, all of these were a but stiff but I went to work and started to lube the mechanics of the camera using a drop of hair clipper blade oil on the end of a cue tip. A dab here and a dab there and decades of dirt was being lifted leaving the cameras shutter, aperture blades and focusing ring nice and smooth to operate.
Last thing was the lens. It was very dusty but fungus free. Taking the lens apart wasn’t hard at all and I soon had the lens clean again using a drop of DSLR Sensor cleaner and a lens cloth. Ready to shoot!

I had to test it first for light leaks. For that I would (in total darkness) cut a strip of film out of a 35mm can (Kodak Tmax 400) and place it in the back of the camera. With the back closed and ready to shoot I took the camera outside into bright sunlight and took a photograph. Then develop the strip of film and examine if the camera leaked light. I could not see anything obvious so I was confident to load the roll of Tmax and go out and put the camera to the test.
There is nothing but manual control for this camera. No rangefinder, no light meter, no auto focus, no auto advance. You have to judge it all yourself. Which is great. It makes your photography more enjoyable I find!
After going for a walk in my village I came back with some pretty nice photographs.
I found the camera easy to use, fun and also the images were very sharp making me think the lens is a good one!
Here is the video from my channel on using this camera.
Zeiss Ikon Nettar
Wow! Just Wow!
I’m quite lucky as I have use of a friends Mamiya 645 for shooting medium format film, however, I do love the look of the 6×6 square negatives. Hassy’s are out of my price range as too are a few others I could mention so I went onto ebay and searched “6×6 film camera”.
A range of cameras started to appear but of course I was looking at the price tag and a whole load of folding cameras appealed to me. Not knowing much about them I started to google the makes and models that I had seen. I thought you can’t go wrong with Zeiss!

So i purchased this little gem above and I am so glad I did.
It’s a simple camera. Once you have figured out how to load the film in the back you’re ready to go.
The aperture settings are from f4.5 to f.22. The Shutter Speeds are Bulb, 25, 75 and 200. All good so far. The only tricky part I found is the focusing. This is not a rangefinder camera and it is not a TLR (Through The Lens) either. So you have to measure your focusing distance from the lens to your subject. There is markings, in meters, on the lens for you to control the focus.
I figured that using the camera at infinity was the best predictable result I could get which was pretty fail safe. Just point the camera at something in the distance and you’d get a sharp image. Anything closer then you’d have to guess, or measure the distance. But that is part of the photographic process with this camera. Or you could buy a shoe mount range finder.
Everything on this camera works well. No rust, the bellows are tight, no leaks, the controls move as they should and the shutter seems accurate. So I was very happy.
The first roll of film I used I managed to double expose one of the frames. So that was then another part of this camera I had to get used to. Not double exposing frames. Because it does not wind onto the next frame itself, so it’s easily done!
The second roll of film I used, shown in the video, I got into the habit of composing my shot, then winding the frame on, then cock the shutter, then take the photo. I closed the bellows and moved to my next scene. Knowing that to take another photograph I had to adhere to the same practice. Compose, Advance, Cock, Shoot. By sticking to this I knew I wasn’t going to double expose. And I didn’t. You just have to look at the red window on the back of the camera when you advance the frame to make sure your next frame number is exactly in the middle of the window. Tricky to see in the shade!
I am looking forward to making some amazing square prints with this camera that I am certain I can print up to 30 inches and still keep a good resolution.
Watch the video on the Zeiss Ikon Nettar.







