This is my contribution to day 27 of Becky’s October Squares: Lines photo challenge.
Take your pick from the lines in the tree bark, the lines of the Ivy stems or the lines in the Ivy leaves.
This is another contribution to the Weekly Prompts Photo Challenge: Sepia which is running throughout August.
Ivy growing up a tree trunk. With the swirling around the edges of the frame you could think that this is an old photo but it was taken this summer with a 25mm CCTV lens adapted to fit a mirrorless camera.
This is my contribution to the Lens-Artists Photo Challenge: Detail.
I thought about some of the photos of details and it occurred to me that two of the first ones I considered were taken about 40 years apart but with the same lens.
So here’s a selection of shots from my Olympus OM Zuiko 50mm f/1.8 silvernose I purchased in 1976. It’s called a silvernose because it has a polished aluminium ring on the front of the lens. This means that it’s one of the early OM system lenses and that it could be single coated rather than multi coated like modern lenses.
Backlit hoarfrost on a branch taken on a field trip with the Nantwich Natural History Society in the 1990s.
Ivy leaves on a tree trunk given a selective colour treatment. Taken on a walk a few years ago with the lens adapted to a DSLR.
Candle, taken with the lens in the 1970s during a power outage.
Hosta leaves taken with the lens adapted to a mirrorless camera a few weeks ago.
Detail of traction engine wheel taken at a steam rally in the 1980s.
An afternoon walk, this time with a 25mm f/1.4 CCTV lens adapted to fit a mirrorless camera. I quickly discovered that the lens has to be used wide open, when I stopped it down I could see it vignetting badly in the camera viewfinder. It still vignettes a little wide open and as the image circle produced by the lens barely covers the sensor there can be some interesting swirling around the edges of the frame.
Soon after discovering that the lens needs to be kept wide open the focusing mechanism started playing up. Initially the focusing appeared to be jammed, once I got the focusing collar to turn the lens would focus on close subjects but wouldn’t focus on distant subjects.
I continued on my walk as my testing was going to be mostly close subjects. When I got home from the walk I got the focusing mechanism working and think that I have managed to fix it.
Some interesting variegated Hosta leaves. One of the first shots taken with the lens before the focusing mechanism started playing up. The edges of the frame don’t show much swirling in this shot.
Ivy leaves on a tree trunk. The swirling around the edges of the photo is really noticeable in this shot.
This is my contribution to the Cosmic Photo Challenge: A State of Independence.
My first thought was a selection of juvenile birds that were independent of the adults when the photos were taken. That idea was quickly followed by the fact that this is the Canada Day long weekend so I considered a Canada Day post.
Then I thought about an ongoing project, testing a variety of lenses on a modern mirrorless camera. Most of the lenses I have tested so far are (or were) made by independent lens makers. Companies that make lenses to fit other makers cameras.
Some of the lenses are in a bit of a state through heavy use or being designed to be almost disposable. Which is why I titled the post “Independent Lenses in Various States” as a rewording of the challenge.
To the lenses.
A Periwinkle flower photographed with a 35mm f/1.7 CCTV lens adapted to fit an Olympus mirrorless camera. Shot with the lens wide open at f/1.7.
This was the first CCTV lens I purchased and I found it interesting enough to purchase a couple more. They’re also known as C-mount lenses having a screw mount for attaching to CCTV cameras with the appropriate mount.
Some of these CCTV lens are very cheap. I wonder if they’re designed to be almost disposable, used where or when a lens could get damaged somehow. The lens was $38 CAD including shipping, the adapter to fit it to the camera and two extension tubes to go between the lens and the camera to allow it to focus on closer subjects.
Ivy growing up a tree trunk with a 25mm f/1.4 CCTV lens. This is one of the lenses I ordered after experimenting with the 35mm CCTV lens used for the Periwinkle flower above.
Stopping the lens down from maximum aperture causes severe vignetting so this was shot with the lens wide open at f/1.4. Wide open the lens still vignettes a bit and as the image circle produced by the lens barely covers the sensor there’s some interesting swirling around the edges of the photo.
I have already had to repair the focusing mechanism on the lens after it first jammed and then stopped focussing on distant subjects. That probably explains why the lens cost $36 CAD including shipping and the adapter to fit it to the camera.
Last years seed pods and new leaves with a 50mm f/1.4 CCTV lens. Shot wide open at f/1.4. This was the other CCTV lens I ordered after experimenting with the 35mm CCTV lens.
Surprisingly good performance for $41 CAD including shipping and the adapter to fit it to the camera. So I’m finding it a bit disappointing so far.
A Bracken frond taken with a Vivitar 35mm f/1.9 lens I purchased used in the 1970s. Shot wide open at f/1.9. At the time Vivitar were a U.S. brand who designed lenses that were then manufactured by various Japanese lens makers.
The same design was built with a variety of camera mounts allowing the lens to fit a wide range of camera bodies.
I have given this lens a hard life over the years and it now feels like it could fall apart each time I use it.
Dandelion clocks (seed heads) with a “silvernose” Olympus OM Zuiko 50mm f/1.8 lens I purchased in 1976. As with the other shots this was taken with the lens wide open, in this case f/1.8.
I don’t know if it can be classed as an independent lens. It wasn’t designed for the camera being used and requires an adapter but both the lens and camera were made by Olympus.
The silvernose refers to a polished aluminium ring on the front of the lens and signifies that it is one of the early Olympus OM Zuiko lenses. This is another lens that has had a hard life. It has been dropped a few times and was once bounced along the gutter of Charing Cross Road while attached to my Olympus OM1 when it slipped from my shoulder as I ran for the last tube train of the night. A few years later it was being dried out in an oven after being submerged in Georgian Bay.
One Word Sunday: Climb.