Tag Archives: Olympus

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: # 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.

52 Cameras: # 132 — Olympus Infinity Zoom 2000




I did a LOT of color correction on these. The film in the camera in the video is not what I used — that’s a bad roll of Polaroid I use to test film transport, etc. The images are Fuji ISO 400, expired in April of 1997 and it shows. Really grainy and it has a bluish tint almost like expired slide film. I processed this at home (Unicolor C-41 kit) so temperature variation might be part of it. It’s not the camera’s fault.

Cropped pretty far into this so it's extra grainy.  A truck pulled up right when I pressed the shutter.

Cropped pretty far into this so it’s extra grainy. A truck pulled up right when I pressed the shutter.


Another random cat.

Another random cat.


The Koni-Omega.  A project camera taking a picture of a project camera...

The Koni-Omega. A project camera taking a picture of a project camera…


A cool cat scarf M picked up at a pop-up store in Santa Fe.

A cool cat scarf M picked up at a pop-up store in Santa Fe.


Jem is so chill.

Jem is so chill.


Dried up roses.  I got a lot of mileage out of these flowers as a subject.

Dried up roses. I got a lot of mileage out of these flowers as a subject.

52 Cameras: # 124 — Olympus Infinity Stylus Zoom 140




I did a bit of editing on most of the images. It’s from the film (age=grain and loss of speed) and scanner noise.
I walked around Santa Fe while my car was being serviced.  This chicken was hanging out in a bush by the sidewalk.

I walked around Santa Fe while my car was being serviced. This chicken was hanging out in a bush by the sidewalk.


"Brickface Hope" by James Tyler.

Brickface Hope” by James Tyler.


Window in downtown Santa Fe.

Window in downtown Santa Fe.


Beautiful old Pinzgauer.

Beautiful old Pinzgauer.

52 Cameras: # 103 — Olympus Trip Junior

I always forget something. There is a little twirly film advance indicator above the flash-ready light. If you have a Trip Jr., pay attention to it. I took this camera with me on a recent trip and got nothing. I had accidentally hit rewind at some point and the film wasn’t advancing. The camera still makes motor noise so the only way to be sure is to look at the advance indicator. On the plus side, rewind on this camera leaves a bit of film out of the canister so I was able to reuse the film.

Goober in the window.  A little color correction for the bluish old Kodak.

Goober in the window. A little color correction for the bluish old Kodak.

Santa Fe River stocked with rainbow trout.

Santa Fe River stocked with rainbow trout.

At minimum focus (1m) there's no leeway for things like Zoe jumping down at the last second.

At minimum focus (1m) there’s no leeway for things like Zoe jumping down at the last second.

Monster developing session overflow in my office closet.  I rotated to get the hanging film vertical.  I like the background -- it looks like a film ad or something.

Monster developing session overflow in my office closet. I rotated to get the hanging film vertical. I like the background — it looks like a film ad or something.

52 Cameras: Camera 85 part 2 — Olympus Infinity (AF-1)

I used a pretty expired (8/1999) 12-exposure roll of Fujicolor Super HGII color print film. Processing and scanning by The Camera Shop of Santa Fe.

We got a pretty good snow the week after Halloween.

We got a pretty good snow the week after Halloween.

Thick wet snow and blue sky -- New Mexico weather.

Thick wet snow and blue sky — New Mexico weather.

I had an old Ghia but mine was a rust bucket.

I had an old Ghia but mine was a rust bucket.

Statue of Fray Angélico Chávez outside his namesake History Library in Santa Fe.

Statue of Fray Angélico Chávez outside his namesake History Library in Santa Fe.

Corn stalks in the fall wind across from the plaza.

Corn stalks in the fall wind across from the plaza.