Blurred Props and Hyperfocus

[olroy2044]

Thought I would start a new thread to continue this discussion, rather that continuing to hijack the Piaggio thread, if anyone's interested.

Here is an example taken with the Viv/Komine shown in the example, this time with a Vivitar 2X used with it. Two things are shown here:
1) Hyperfocus works with teleconverters,
2) The blurring effect of 1/250 shutter speed.

I haven't taken the time to explore what effect the converter has on the "in focus range" with the 2X, but I would have to believe that it would be shallower than the same lens without it.

If you look at the blades on the Mustang's prop, you will see that the degree of blurring increases the farther out the blade you look. In this particular shot, the Mustang had the power way up to stay with the '16, (Was doing a pretty good job of it too!) so the prop governor had the RPMs up.

I don't remember what aperture was set on the lens to go with the shutter, but it was probably based on "sunny 16," due to the meter battery being dead in the Spot F at the time. (another example of why I like mechanical cameras ) No post processing,other than a minor crop to get rid of excess sky.

Anyway, here's the shot. Comments very welcome.



Roy

[Andrew]

Roy,
its a very fine sight, i have seen virtually the exact same same done here at the airshows a few times, the poor ol mustang i always felt sorry for having to strain that little bit keeping up with the F's doing it easy...sometimes i thought the F's should be made to hang back and show respect for the old Mustang, let IT take the lead! haha

the mustang one of my favourite planes, is always great to see. It would appear you have the prop blur just about perfect, its hard to imagine that it could be any better..

makes me wonder which plane is my favourite to see, hmmm maybe still the old Spitfire i think, so graceful it is i could never tier of watching it, and i am also fascinated with some of the craft from WW1 as well, not that we see them much, if at all...the mustang is up there amongst my favourites too though, the work they did !!

[olroy2044]

Thanks for the nice comments, Andrew. Roy

[Deleted]

The Mustang is, IMO, the most beautiful prop plane ever produced.

Wayne

[athurart09]

Aug 7, 2009 11:07:33 GMT -5 olroy2044 said:

Thought I would start a new thread to continue this discussion, rather that continuing to hijack the Piaggio thread, if anyone's interested.

Here is an example taken with the Viv/Komine shown in the example, this time with a Vivitar 2X used with it. Two things are shown here:
1) Hyperfocus works with teleconverters,
2) The blurring effect of 1/250 shutter speed.

I haven't taken the time to explore what effect the converter has on the "in focus range" with the 2X, but I would have to believe that it would be shallower than the same lens without it.

If you look at the blades on the Mustang's prop, you will see that the degree of blurring increases the farther out the blade you look. In this particular shot, the Mustang had the power way up to stay with the '16, (Was doing a pretty good job of it too!) so the prop governor had the RPMs up.

I don't remember what aperture was set on the lens to go with the shutter, but it was probably based on "sunny 16," due to the meter battery being dead in the Spot F at the time. (another example of why I like mechanical cameras ) No post processing,other than a minor crop to get rid of excess sky.

Anyway, here's the shot. Comments very welcome.



Roy

Thanks, for sharing. Good info and pics

[daveh]

Roy, that photo is well worth having been brought to the top again. I wasn't 'here' on its first time round, though I had looked at it several weeks back.

arthur, welcome and thanks for bringing it to our attention again.

Dave.

[Randy]

Roy, I like that pic.

[olroy2044]

Arthur, welcome to the forum!! Thanks for digging that photo out and for the nice comment.

Randy and Dave, thanks for the comments. Glad you liked it! That airshow is due again next weekend, (Sept. 24-26) so I'll soon be suffering from "Merlin-itis" and jet thunder! ;D Stand by for pix! Roy

[daveh]

There is Southport airs how coming up in a couple of weeks, but it clashes with other things, so I am unlikely to get there. There is also a yesteryear transport show this weekend: the same thing applies though - Saturday and Sunday are already spoken for.

I'll have to make do with your photos Roy.

[drako]

Aug 9, 2009 9:16:58 GMT -5 wayne said:

The Mustang is, IMO, the most beautiful prop plane ever produced.

Hard to make a good argument against the Mustang, but I think my favorite of that era is the Corsair. If only because of those unique gull wings.

[drako]

Sorry, Roy ... not really intending to go off-subject here!

[olroy2044]

Not to worry, Johnny! Always ready to talk planes!! Roy

[mickeyobe]

If you look at the blades on the Mustang's prop, you will see that the degree of blurring increases the farther out the blade you look.

Roy, The tips must travel much faster and farther than the parts near the hub.

Eventually they will blur no more.


Here is another example of what you have described.



Mickey

[daveh]

For me the Spitfire is the prettiest of the single prop planes. The ugliest has to be the German plane with the offset cockpit - the main fuselage just housing the engine.

At the Liverpool airshow I went to (thirty years and more ago) there was a German reconnaissance aircraft which had such a ridiculously low stall speed that it would be virtually stopped but still stay airborne. I can't recall its name - something like Stolle. I did have photos (which of course I can't find). Any ideas, Roy?

[PeterW]

Mickey,

Got to come back on your latest aircraft picture despite the time of night.

What is it? It's got me stumped.

It reminds me of a Deperdussin c. 1912, but I'm probably wrong.

PeterW