Yearly Archives: 2026

200mm Micro-Nikkor AiS IF on the Nikon PB-4 bellows

Leica, Macro, Nikon lenses

A handy combination.

For an index of all Leica-related articles click here.

Read about the 200mm Micro-Nikkor AiS IF here.

Read about the Nikon PB-4 bellows here.

Unlike the optical unit of the 135mm Leitz Elmar or the 100mm Macro-Elmar-R, both of which permit infinity focus all the way down to a 1:1 reproduction ratio, the optical unit of the 200mm Micro-Nikkor AiS IF is not detachable. But that does not disable it for higher reproduction ratio macro photography. The focus range of the lens mounted directly on a camera body is from infinity to 1:2, or half life-size. So I thought it would be interesting to see what that focus range becomes when the lens is mounted on the PB-4 bellows, which requires no adapters.



The 200mm Macro-Nikkor AiS IF on a fully
extended Nikon PB-4 bellows on the Leica SL2-S.

a) With the PB-4 collapsed and the lens set to infinity, the reproduction ratio is 1:2, or half life size. That’s exactly as close as the Micro-Nikkor can focus mounted directly on the camera without the bellows.

b) With the PB-4 fully extended and the lens set to the closest focus distance the reproduction ratio is 3:2 or 1.5 times life size. If needed the lens can be reverse mounted on the PB-4 using the Nikon BR2 or BR2A reversing adapter, which it fits directly, owing to its 52mm filter thread size.

Thus the combination of Micro-Nikkor without or with the Bellows PB-4 gives you a continuous focusing range from infinity to 1.5 times life-size. Nice.

The above image also shows the subject to lens distance at the closest focus distance, which is 11″ with the lens hood retracted, making proper lighting a simple matter.

So this is a handy combination of a state-of-the-art bellows with a tack sharp macro lens. Some images to come, later.

To keep weight down I removed the tripod collar from the Micro-Nikkor. It also bears adding that this is not a lightweight rig so a solid tripod with broadly splayed legs and a heavy duty ball head are called for.

David Hockney passes

Paintings, Photography

The greatest living artist.

David Hockney, Yorkshire born artist and some time Angeleno, has died aged 88. A two pack a day man he chose to disregard his doctors’ advice and outlived the lot. Clearly he had what I think of as the ‘Keith Richard gene’.

Acrylics, giant murals, iPad and iPhone paintings, Polaroids – Hockney did it all. And his sense of fun, his sheer joy of seeing, pervades all. After graduation from the Royal College of Art Hockney was soon selling his prodigious output, having always been a workaholic, and moved to Los Angeles the first chance he got. Heck, if you were from Yorkshire – what Monty Python once called ‘The Third World’ – you would have moved, too.

While Hockney denigrated photography as ‘not really seeing’ he was an adept user of the medium, never less than with this cover for a newly revitalized Vanity Fair:



Hockney’s shoelaces.

Then there’s this exceptional Polaroid collage of an intersection in the California desert:



Highway 138.

The book of that deYoung exhibition linked in the opening of this piece remains available and is a great introduction to (later) Hockney art.

Alfalfa

Leica, Macro

Picked on my morning walk.

For an index of all Leica-related articles click here.

Gorgeous colors in a very small bloom.




Click the image for a larger version.

With the bloom just 3/4″ across I used the 80mm El Nikkor reversed on the Nikon BR2A ring for best resolution, all on the Nikon PB-4 bellows, making for a twice life-sized image on the sensor.

Leica SL2-S, 80mm El Nikkor f/5.6N reversed at f/16, PB-4 bellows, 3 strobes, 10 images focus stacked in Helicon Focus.

The Knipex SW40 adjustable wrench

Motorcycles

Every motorcyclist should have one.




Click the image for a larger version.

Six things make this tool special:

  • The jaws stay parallel at all times – try that with the usual adjustable wrenches which are designed to round nuts and the heads of bolts, AKA The English Bodger Wrench or Crescent wrench.
  • It has a unique ratcheting design which allows the wrench to be used as a ratchet when turning nuts and bolts, torque forcing the jaws to firmly clamp the object. Try that with the EBW. As the ratcheting feature cannot be overridden, flip the wrench over (showing the inch markings) when unscrewing a nut or bolt.
  • The adjustment range is a large 0 to 40mm with 10-40mm clearly marked in the cut-out window. Set to 0mm they behave like pliers. The handle length is 180mm/7”.
  • The push button adjuster sets all the common metric sizes exactly – 6,7,8,10,12,13,16,19,22mm. Inches are marked on the other side.
  • It’s made in Germany, where you want your tools to come from.
  • It is a thing of beauty, an heirloom tool you will be passing down to your offspring.

I keep one in my motorcycle’s under-the-seat tool kit. You know, from the days when bikes and cars came with tools:



Everything you need in one kit.

Given my bike is now 51 years old – a 1975 900cc BMW Airhead Boxer Twin – I think you may forgive the stains on the tool pouch. Note the presence of a spoke wrench (real wheels wear spokes), a spare centerstand spring (just in case), feeler gauges for adjusting the valves with a set of carb needle reamers underneath, and a cheap stick-type tire pressure gauge which is dead accurate and requires no batteries … and little space.

You can find the Knipex at Amazon – other sizes are made but this 40mm one covers everything you need on a bicycle, motorcycle or car and fits neatly in the toolkit. (I get no financial gain if you click that link).

Cheap? Nah. You want cheap you get the English Bodger Wrench version. Every motorcyclist should have one of these in his toolkit, and if he rides an old British machine two would be in order ….