View Full Version : Quick Letus Rack Focus Example


Steven Dempsey
May 6th, 2007, 07:40 AM
This is why I love using a 35mm adapter. I've been shooting my son's Little League games exclusively with the Letus.

In this example the focus goes from the pitcher to the batter, something I just couldn't achieve effectively using the A1 lens.

http://www.pinelakefilms.com/XHA1/letusbaseball.wmv

This is just a 5 second clip


EDIT: Here's another clip (no rack focus here) that demonstrates the advantage in isolating the player from the background. It really allows the viewer to filter out all the background distraction and just pay attention to the player:

http://www.pinelakefilms.com/XHA1/letusbaseball1.wmv

Jerome Cloninger
May 6th, 2007, 08:59 AM
Pretty cool. Better keep an eye on the ball. Would be aweful for your camera to get hit by one.

Steven Dempsey
May 6th, 2007, 09:00 AM
I was behind a wire fence :)

Jeff Nelson
May 6th, 2007, 09:51 AM
Are you shooting with a monitor? Or just eyeballing focus through the camera?

Steven Dempsey
May 6th, 2007, 09:53 AM
eyeballing for these games.

Jeff Nelson
May 6th, 2007, 11:30 AM
Nice. Making me think I want to get one of these Letus adapters and try it out...

Andrew McDowell
May 6th, 2007, 06:38 PM
what does your a1 look like with it on?
can you post a picture?

Colin Levy
May 6th, 2007, 07:31 PM
Hey Steven - your footage looks great. How hard is it to eyeball the focus on the built-in LCD? Based on the footage you've taken, is it possible to get reasonably accurate without an external monitor?

Thanks!

--Colin

Lonnie Bell
May 7th, 2007, 01:51 AM
in the second clip you posted, i heard a spinning noise (gears), is that your mic picking up the letus?

and by the way, which Nikon lens were you using on those shots?

thanks for posting - really digging that camera!!
Lonnie

Steven Dempsey
May 7th, 2007, 09:31 AM
I haven't listened to the audio because I won't be using it but you are probably hearing the sound of the motor. For any serious recording, you wouldn't want to be using the built in mic unless the ambient sound overwhelmed it, then it wouldn't be a problem.

I use two Nikon lenses to shoot the game, 50mm f1.8 and 100 f2.8 (this one I used for both posted examples).

Eyeballing focus using the peaking feature with the LCD is easiest with the 100mm because it has the shallowest depth of field and so it's easy to see the contrast between the focussed subject and the background. It's trickier with the 50mm and I also have a 28mm which can be a challenge sometimes.

For critical focussing and something a little more serious, I would not leave home without my 7" Marshall monitor.

Colin Levy
May 7th, 2007, 09:44 AM
Thanks for answering, Steven. Are you happy with your 7" Marshall? I've heard a lot of talk about how it's impossible to focus HD without a really good high resolution 2k monitor... does your Marshall do the job?

Thanks!

--Colin

Chris Barcellos
May 7th, 2007, 09:45 AM
Steven:

Great shots! In the pitching shot, did you have a "stop" rigged to assure you did go past the focus point for the batter, or were you just depending on approximation (like half turn or something like that...).

Steven Dempsey
May 7th, 2007, 09:57 AM
Thanks for answering, Steven. Are you happy with your 7" Marshall? I've heard a lot of talk about how it's impossible to focus HD without a really good high resolution 2k monitor... does your Marshall do the job?

Thanks!

--Colin
Not true, it is quite easy to focus using the Marshall monitor. Anyway, you are going to see all kinds of claims by professionals looking at the 7" monitor and basically laughing at it because to them it could look like a toy.

I'm shooting stuff that will end up being viewed on an HD TV, not on a theater screen. I"m not worried about focus being off a fraction of a millimeter that would only be noticeable on an IMAX screen :)

You have to ask yourself what you intend for your footage. If you are planning on transferring it to 35mm eventually, then I wouldn't use a 35mm adapter because the softening you get using these devices is hugely pronounced on a theater screen. If you are planning on releasing your film on Blu-ray or HD-DVD, then there is some forgiveness in production mistakes or slight imperfections.

All too often, independent filmmakers and hobbyists get too wrapped up in the equipment and spend most of their time obsessing over how to pimp out the camera and looking cool while compromising the time that could be spent actually learning their craft. Some people have spent the last 5 years waiting to purchase something because they are so nervous about missing the next big thing if they commit to something current. It's sad and absurd at the same time.

The XHA1 has given people the opportunity to shoot footage only dreamed about a couple of years ago and at an affordable price to boot. The 35mm adapters that are available now have surpassed the mini35 (in my opinion) and are a fraction the cost. It's just mind boggling to me that I am able to shoot HD and, by using an adapter, approximate the look and feel of what I love the most: film. I don't care if others think it doesn't look exactly like film, to me it does and it's all subjective. I have friends that look at soap operas and then look at a film shot with 35mm in Cinemascope and they don't consciously recognize a huge difference. It's all just moving pictures to them.

My point is this: work with what you have. MAKE it work for you. You don't need expensive gear to shoot a movie, the camera itself is more than adequate for most independent needs (I'm talking about immediate accessories for the camera, exclusive of lighting and other production needs) and, if you need something more, rent it.

Steven Dempsey
May 7th, 2007, 10:02 AM
Steven:

Great shots! In the pitching shot, did you have a "stop" rigged to assure you did go past the focus point for the batter, or were you just depending on approximation (like half turn or something like that...).

Thanks Chris. I'm doing all of this on feel and I've got it down pretty well. I just know to turn the focus ring by a certain amount to achieve focus in the foreground. It's not scientific but it works for me.

EDIT: and just to qualify what I"m doing. Consider that I get about 15 chances to do the same shot over and over so the first few maybe screwed up but I get it right pretty fast. I'm always watching the peaking on the LCD. When I'm setting up a relatively static shot, I'll use the magnifier also. That really helps.

Someone suggested setting the zoom and focus presets to what is needed for your adapter. This is a great tip and something I've only recently implemented. Before every change of shots, I engage both of these to make sure I have the proper zoom factor and focus.

Colin Levy
May 7th, 2007, 11:39 AM
Thanks so much, Steven! Your reply makes me feel more confident about this decision.

And you're right - I'm not making a movie for IMAX, I'm planning on distributing online. 720 x 1280, max. I'm so glad the Marshall works just fine for you.

What model do you have? There are a bunch of 7" Marshall monitors - how much did yours cost? I have a feeling it's still over my budget.

Anyway, I'm sorry to take over your thread. I hope you don't mind my questions.

--Colin

Steven Dempsey
May 7th, 2007, 11:49 AM
Hey, not a problem. I'm always happy to help.

I can't remember exactly what I paid for it, maybe around $1300 but it's this one: http://www.lcdracks.com/monitors/vr70phda.html

Marty Hudzik
May 8th, 2007, 01:34 PM
Steven,
In reference to a little heated discussion we had in another one of your threads:

These shots look great and tack sharp. The main subject looks perfectly focused with no fall off whatsoever and the background is significantly blurry to boot. It makes the image pop! This looks great and removes a lot of doubt I had about the 35mm adapter.

Peace!

Steven Dempsey
May 8th, 2007, 01:36 PM
Amen, brother :)

Mike Gorski
May 8th, 2007, 06:20 PM
Looks great. Thanks for posting this clip. I love that switch of focus to a shallower DOF when the ball makes it the catcher.

Rick Underwood
May 22nd, 2007, 08:53 PM
Hello Steven,

Long time lurker first time poster.

Just wanted to say that you do excellent work... your an inspiration to me and alot of us on this forum.

I did however have a question for you i am hopng you can help me out with...? On the second clip about 5-6 seconds in there is a horizontal bar that comes across the batter's jersey/chest. What is that and is that something from the camera..? I have noticed that on other footage in the past... not from you... but was wondering if that is something to look into and how to correct in the future.

Many thanks in advance and keep up the great work!!!

-Rick


This is why I love using a 35mm adapter. I've been shooting my son's Little League games exclusively with the Letus.

In this example the focus goes from the pitcher to the batter, something I just couldn't achieve effectively using the A1 lens.

http://www.pinelakefilms.com/XHA1/letusbaseball.wmv

This is just a 5 second clip


EDIT: Here's another clip (no rack focus here) that demonstrates the advantage in isolating the player from the background. It really allows the viewer to filter out all the background distraction and just pay attention to the player:

http://www.pinelakefilms.com/XHA1/letusbaseball1.wmv

Steven Dempsey
May 22nd, 2007, 08:54 PM
Thanks Rick, that line you mention is a result of compressing the file for the Web. There was a glitch in the compressed version. The original does not display this line.

Rick Underwood
May 23rd, 2007, 08:25 AM
Thanks for the help....

For furture ref..
do you think it would be easier to just reload the file rather than worry about trying to tweak or correct that... only reason i ask is we have had that happen to files when posted internally to a network and the original footage is archived. So rather than pulling teh tapes was wondering if you had any other ideas...? Our equipment gets heavily used so i choked it up to enviormental conditions at the time..

Thanks again!