Showing posts with label shutter. Show all posts
Showing posts with label shutter. Show all posts

Tuesday, February 9, 2016

Take the Photo When You Want

This must be a generation thing... I heard about "shutter lag" first only a few years ago. At that time, I had a hard time understanding what the actual problem was. Mind you, my photographic experience originates in a fully manual SLR-cameras, which always released the shutter when I pressed the release button.

Finally, it all was clear to me, the complaints about shutter lag was caused by fully automatic settings, in particular auto-focus, of "modern" generation automated photographic equipment.

Being used to manual focus, my habit was to set the cameras to all manual, in particular for focusing. I never trusted any camera to know what I wanted in focus.

Lately, some cameras had a real impact on me, cameras that could be told which distance to focus at and stay at that distance.

First to mention in that context is the Fujifilm X-Pro1 with adapted legacy glass. Some of my older M42 lenses are rather sticky in the focus department. Set the lenses' apertures to f/8 and adjust focus according to the distance scale. Done! The metering of the camera is fast enough to adjust the shutter speed in an instance. However, if one wants to be rally be assured of the fastest reaction of the camera: choose ISO and shutter speed (according to sunny 16) manually. Great to have a dial for shutter speed selection.
The camera should have lost all the shutter lag by now.

Second choice: Ricoh GR (version V) or GR-II. Ricoh understood that auto-focus causes the greatest delays in automated photography. So, Ricoh decided to add the "snap focus distance" feature to their GR camera. With the camera in AF mode, half-press the shutter release and AF will start. However, when focus is not yet achieved but the shutter release is fully pressed, the focus defaults to a predetermined distance. Brilliant! Again, depth of field by the aperture chosen helps to determine the preset zone.
The Ricoh GR is extremely compact and fits in pockets, however, operation is very much menu-based.

Next: Leica X2 (Leica X-E, same camera, different color scheme). The Leica allows for decent manual zone focusing. The focus distance can be locked in, so it can't accidentally knocked off. That is really great for zone focusing with a predetermined DoF. The Leica also offers manual aperture and shutter speed dials, which is great for fully manual exposure settings.

Only at my 4th place: Fujifilm's X100 series. I love those cameras, no doubt! The manual focus scale displayed in the OVF is magnificent. However, the focus ring is very loose, I knocked it off bu accident several times, which ruined the shots. I wished there was a feature to lock the manual focus.
The X100 series sports manual aperture and shutter speed dials, which is really great!

5th (1st) place, solely for the reason that the other cameras are doing so well when stabilisation is not required: Olympus MFT bodies. Those cameras employ in-body image stabilisation, which is great for low light situations. When in any low light environment, the Olympus OM-D E-M5 is my prime choice! With adapted legacy glass, the Olympus still stabilises the image by sensor motion.


The above ranking is certainly not carved in stone! The differences are pretty subtle.

The most important message I wanted to convey:
  1. shutter lag exists when shooting in AF
  2. shutter lag disappears almost completely when focusing manually
  3. setting exposure parameters manually cannot harm
Conclusion: Remove as much automation as you are comfortable with, you'll be rewarded with a more timely photography.

Monday, November 24, 2014

Oh No! WD-40!!!

This post is not for the faint-hearted or any glove wearing gear lover!

I have not yet posted about my latest turn in classical photography, which brought me into large format. Yes, you read correctly, I am into large format now, more about that in a later post.

Along with a very nice Plaubel Peco Supra outfit came a 65mm Super-Angulon lens with a #00 Synchro-Compur shutter. All was fine with that shutter, but the slow speeds, which were gunked up.
"What do I care about slow speeds, since we have fast film!", you may think ... not so fast my friend. Large format lends itself to very slow film speeds, e.g. by use of photographic paper, rather than film. Now we are talking ISO 3-6 actually.
For me, the slow shutter just had to work!

So, I  decided to give a try and dismantled the Synchro-Compur, well, ok, I just took the lid and the speed-cam off.

First attempt to free the gears:
Zippo lighter fluid. Essentially, I swamped the entire mechanism with that stuff. Firing the shutter gradually freed the gunked gear and the slow speeds were coming up again. After some struggle with some springs, I managed to get the cam-plate back in place, closed the lid and had the shutter firing normally again. All speeds working! .... YEAH! Well ... not for long. 
The slow speed mechanism got sticky again a day later.
Cleaning with lighter fluid only did thus not do the trick!

Second attempt to free the gears (this is were real geeks should stop reading!):
WD-40 next to Duck-tape is the technicians best bet. Both are known for some severe and unwanted side-effects. Actually, the side-effects are somewhat similar, sticky gunk, which is difficult to remove!
WD-40 however, has the brilliant property to to loose old grime real good.
With the motto: no shutter is as good as a useless shutter, I tried to carefully spray some WD-40 into the stuck gears. Of course this did not go to plan... WD-40 ended up everywhere... in the shutter blades, on the aperture blades, etc. etc.
The result was, all shutter speeds ran extremely smooth! The volatile light highly viscous component of WD-40 did an excellent job.
Now, let's remove WD-40 as quickly as we can from the shutter.
In a first step, I flushed the shutter with Zippo lighter fluid.
In a second step (now look away if you are a purist!) I bathed (!) the entire shutter in medium hot water with a high a concentration of neutral (no perfume, no coloring) dish soap. Actually, I poured some of the dish washing soap right into the shutter and on the blades. Having done so, the entire mechanism experienced a dive, during which the shutter had to operate many time through all the gears (speeds).
Some time later, the Synchro-Compur experienced a hot shower of plain water, whilst firing, to be dried on a heating radiator a moment later.

Contrary to the first attempt of freeing the slow gears, the second attempt's result holds up. Fully dry, showing no signs of "lubricant", the shutter speeds, down to 1s, are just fine, finally, thanks to WD-40!?

Time will tell if I managed to also remove the heavy component of WD-40, which has the reputation to keep water away by greasing up, i.e. becoming sticky.

Use with care! Please understand the risks of using WD-40 in such delicate mechanisms as photographic shutters. Having warned you, I wont sign responsible when you messed up your $$$ camera mechanics.