Tag Archives: 35

Figuring Out F-Stops – Olympus Trip MD

Like the Konica Tomato/Pop-10, the brightest f-stop is the only one given in the manufacturer’s literature. Unlike the Tomato, I couldn’t find information on line so I had to do it myself.

If you don’t care how I arrived at these values and trust a random web page, here’s a table:

ISO Flash F-Stop
100 yes 4
100 no 8
200 yes 5.6
200 no 11
400 yes 8
400 no 16
1000 yes 11
1000 no 22

These values are rounded to the nearest whole stop. YMMV. Not responsible for ruined shots, hives, divorce, or any negative outcome resulting from the use of this information.

The camera is dark gray or black but the LED lights made it look blue.

Trusting that 35mm really is the focal length and f/4 really is the brightest f-stop:
35mm / 4 = 8.75mm diameter with the lens wide open.

You only get F4 at ISO 100 and the flash popped up.

You only get F4 at ISO 100 and the flash popped up.

The area is what’s important for exposure. Focal length/diameter=f-stop only holds for circular apertures. For most, I treated the shapes like diamonds and used (b x h)/2 for the area. To keep things simple, I cropped in to the edge of the lens and then resized to 875 pixels so 100 pixels is one millimeter. Once I had an approximate area, I used the equivalent circle area to get a diameter. SensorsOne has a great calculator so I could just plug in the area instead of using a calculator and working backwards from area=π r² every time.

ISO 200 with the flash came out to about f5 so I rounded it to the nearest full stop at f5.6

ISO 200 with the flash came out to about f5 so I rounded it to the nearest full stop at f5.6


ISO 100 w/o flash & ISO 400 with flash are ~ f8 (7.2 calc'd).

ISO 100 w/o flash & ISO 400 with flash are ~ f8 (7.2 calc’d).


ISO 200 w/o flash & ISO 1000 with flash are ~ f11 (10.3 calc'd).

ISO 200 w/o flash & ISO 1000 with flash are ~ f11 (10.3 calc’d).


The last one was still approximated to a diamond but I had to be more accurate as the apertures got smaller.
At ISO 400 & no flash, the shape got less diamond-like so 2 circles and 2 squares give f14.

At ISO 400 & no flash, the shape got less diamond-like so 2 circles and 2 squares give f14.


ISO 1000 w/o flash is a pill shape so a circle cut in 1/2 and a small rectangle approximate the area for f18.

ISO 1000 w/o flash is a pill shape so a circle cut in 1/2 and a small rectangle approximate the area for f18.

52 Cameras: #189 – Minolta A5




We were going to go up Truchas Peak but all of the land grant entrances were locked. One of us had been trying to get a hold of the president for over two weeks. The ranger said it had been open all summer but I guess we were too late in the season. We started going on a hike-for-the-heck-of-it from Santa Barbara Campground and tried Trampas Peak on a lark. We didn’t summit but did OK considering how late we got to the campground after trying every way to Truchas we could find on the map.

I’ll try some exposure stacking – bracketing gave me some good sky-dark mountains and the reverse.

It had been windy - some big trees down.

It had been windy – some big trees down.


I have another version focused at infinity - I'll try focus stacking and post results.

I have another version focused at infinity – I’ll try focus stacking and post results.


I had a smudge on the lens.

I had a smudge on the lens.


Another shot of Jem.

Another shot of Jem.

52 Cameras: # 186 – Olympus Infinity 76 AF (SuperZoom 76S)




First, some found images. Fujicolor Superia 800.
Someone graduated.

Someone graduated.


Chillin' on the boat.

Chillin’ on the boat.


If you know these people or are these people, get a hold of me through the YouTube comments and I’ll get some images to you.

Goober again. If you want a cat to move, try to take its picture.

Goober again. If you want a cat to move, try to take its picture.


Kodak TMAX-100. The images were a little soft but I think that was mostly my development.
They didn't use the ratchet on the press.  More fun to run in circles.

They didn’t use the ratchet on the press. More fun to run in circles.


The proprietor of Wildharber Farm.

The proprietor of Wildharber Farm.


I mentioned organic in the video. I don’t know if the farm is certified but the practices are in line with it. Organic certification can take a long time and it can be pricey to get and maintain it.

Phound Photos Volume 14

I had several cameras with found film in them. As usual, most had nothing but a couple had something. I had gotten this roll processed at The Camera Shop of Santa Fe and it wasn’t scannable. I set it aside and came back across it while cleaning the office/workshop. Before chucking it, I held it up to the light and could barely make out some images. I scanned and did some heavy correction. The trouble is, it sat around so long I don’t remember what camera it’s from. The film is so dark I can’t make out any edge markings or frame numbers either. After I scan some other found film I may be able to do a “Cat In The Hat” and figure out which film it’s not and hopefully narrow it down.

Update 25 September 2019: I take snapshots with my phone when I find film and I think this is from a Canon Z115. I still don’t remember when or where I acquired it but it’s a start.

I usually don’t post all of the found images from a roll but these tell a cool story.

Building a log house

Building a log house


Hard work

Hard work


And long days

And long days


A lot of progress

A lot of progress


Coming along nicely

Coming along nicely


Every project's nightmare - snow before it's weather tight

Every project’s nightmare – snow before it’s weather tight


Vintage VW and solar panels

Vintage VW and solar panels


Another building.  Workshop?  Studio?

Another building. Workshop? Studio?


Nice views

Nice views


I thought the camper lid was up but it's the building behind it

I thought the camper lid was up but it’s the building behind it


Sunny so maybe work can resume soon

Sunny so maybe work can resume soon


Detail of the side door

Detail of the side door


Detail of the front door - beautiful cedar

Detail of the front door – beautiful cedar


Shadows from the west - solar panel facing south

Shadows from the west – solar panel facing south


After the snow - getting a proper roof

After the snow – getting a proper roof


This is going to be a gorgeous house

This is going to be a gorgeous house


Not sure if these are from before or after the snow

Not sure if these are from before or after the snow


Giddy or exhausted - maybe after

Giddy or exhausted – maybe after


Clowning for the camera

Clowning for the camera


OK, do a serious one

OK, do a serious one


Camera shy

Camera shy


Chillin' on the porch

Chillin’ on the porch


I guessed the order based on progress I could see. Some are probably off but close enough.

52 Cameras: # 184 — Bell & Howell (Canon) Dial 35-2




Kodak Color Plus 200 scanned on a Canon CanoScan 9000f at 2400DPI and resized for the blog. Any edits are in the image file names.
They look like tampons but they're ice sculptures.

They look like tampons but they’re ice sculptures.


Another fun night shot.

Another fun night shot.


I don't remember what this sign is for - I just like the abstract shapes.

I don’t remember what this sign is for – I just like the abstract shapes.


Flamingos at the Flamingo.

Flamingos at the Flamingo.

A little more than half way done with the scanning. If I see something interesting, I’ll add it to the post.

52 Cameras: # 183 — Yashica 230-AF




It speaks well for this camera that even with the shutter malfunction, giving a useful format of 36mm wide X 12mm high, I got some usable images. Most are sharpened a bit – they’re cropped to about 25% of normal area.

Kodak-Alaris Color Plus 200. I’m glad Kodak-Alaris re-introduced Color Plus. Usually, Gold 200 is what’s available in the US. Color Plus is good film for really cheap. I like it better than the Gold — it isn’t as saturated so images are more WYSIWYG. I can always add saturation in post if that’s what the subject calls for.

Scanned with a Canon CanoScan 9000f at 2400DPI.

Ant pile

Ant pile


Flowers in our friend's yard

Flowers in our friend’s yard


I left this uncropped except for the black part.  It made an interesting composition

I left this uncropped except for the black part. It made an interesting composition


M was critter-sitting.  The meanest turkey you'll ever meet.

M was critter-sitting. The meanest turkey you’ll ever meet.


Flowers in the yard.

Flowers in the yard.


I wish I had a better photo of Hank.  He's a 300 lb sweetheart.

I wish I had a better photo of Hank. He’s a 300 lb sweetheart.


Jem.  His paws were in the unexposed part.  Another sweetheart.

Jem. His paws were in the unexposed part. Another sweetheart.

52 Cameras: # 180 — Bolsey B2




I’ll start with an image that’s in the video. I just metered the scene without compensating for the strong back light. This is what I got:
Goober & Jem: un-adjusted

Goober & Jem: un-adjusted


Using the scanner adjustment to compensate. I can see them but the background is brighter (don’t care) and they look hazy (do care). This is the result:
Dragged the scanner software midtone on the histogram to 60 (default 128)

Dragged the scanner software midtone on the histogram to 60 (default 128)


I tried the Photoshop merge, the same wizard that let’s you create a panorama. It did not cover itself in glory. Several manual variations later, I came up with this:
Stacked the images as layers and played with transparency.  Then used the levels setting in Preview.

Stacked the images as layers and played with transparency. Then used the levels setting in Preview.


I may be able to get something better using layers with a selective erase (I got better results putting the darker layer one top and varying the transparency, which seems counter-intuitive to me) but I’m not sure it won’t look like modern HDR-that-doesn’t-look-real images.

The film & the lens handle wide contrast ranges if you meter properly

The film & the lens handle wide contrast ranges if you meter properly


I have a scanner-brightened version of this too but I haven't tried exposure stacking.

I have a scanner-brightened version of this too but I haven’t tried exposure stacking.


I was trying to avoid cars in the frame and ended up with "Ladies & Gentlemen, St. Francis has left the building".

I was trying to avoid cars in the frame and ended up with “Ladies & Gentlemen, St. Francis has left the building”.

52 Cameras: # 179 — Time Magazine Promotional Camera




I wanted to shoot with this camera before I start modifying it and maybe destroy it completely. Plus, I got an unused roll of film in a camera bag that came with a camera. – some Kodak HD 400. No idea of its age or how it was stored so it’s ideal for a low-expectations camera.

Links mentioned in the video:
https://www.instructables.com/id/Upgrade-Your-Time-Magazine-Promotional-Camera/
https://collectiblend.com/Cameras/New-Taiwan/
1984 Time Magazine camera promo commercial

Most of the Time cameras have the fake motor drive bump out – mine doesn’t. This guy has the exact same camera, right down to the SN on the lens.

Some color tweaks and haze removal but that’s more the film than the camera.


Rug drying in Santa Fe

Rug drying in Santa Fe


Jem - a cat with a purpose

Jem – a cat with a purpose


Trinity's just trying to stay cool

Trinity’s just trying to stay cool