Double Exposure for Dummies - DPChallenge Forums

04/23/2010 11:37:11 AM · #52

I was the one that suggested the challenge and in my mind I really had "multiple exposure" in mind, but the technique is more often called "double exposure" so I naturally went with that.

Personally I would not vote down shots which have more than two "exposures".

ti_evom

Pentax FA 31mm f/1.8 AL Limited AF

04/23/2010 04:22:05 PM · #53

So who has access to a set of identical twins? :-O

njsabs

Canon EOS-5D Mark II

Canon EF-S 18-55mm f/3.5-5.6 IS

04/23/2010 06:33:27 PM · #54

Originally posted by ti_evom:

So who has access to a set of identical twins? :-O

I do. :O)

CNovack

Canon EOS-600D/T3i Rebel

04/23/2010 08:06:20 PM · #55

Originally posted by ti_evom:

So who has access to a set of identical twins? :-O

Raises hand...actually two sets in fact:-)

GeneralE

Canon PowerShot S3 IS

Canon 12x IS USM (S3 IS built-in Lens) -- 36-432mm (35mm EQ)

04/23/2010 09:02:18 PM · #56

Originally posted by ti_evom:

So who has access to a set of identical twins? :-O

Wouldn't this challenge require that they be willing to post nude?

Covert_Oddity

Nikon D700

Nikon AF-S NIKKOR 24-70mm f/2.8G ED

04/23/2010 09:26:17 PM · #57

Originally posted by GeneralE:

Originally posted by ti_evom:
So who has access to a set of identical twins? :-O

Wouldn't this challenge require that they be willing to post nude?

Took me a few seconds!

one2one

Olympus E-5

Olympus 7-14mm f/4.0 Zuiko Digital Zoom

04/24/2010 10:43:44 AM · #58

Originally posted by Bear_Music:

Originally posted by HawkeyeLonewolf:

What ARE you talking about? Who are you ranting at?

double-exposure effect is 100% correct.

triple-exposure effect is 0% correct.

Not you. You weren't debating whether the reflections were DE. Sorry for the confusion. It was Jac's position I was debating above.

R.

Then quote me Robert, not someone else.

I'm sorry but this challenge title is clear and to the point. You need two exposures to qualify, anything else is DNMC. A reflection is one exposure. A triple exposure is three exposures, not two. I'm sticking to the challenge description and will vote accordingly. I hope you all do reflections and triple exposures, I really do.

A double exposure effect doesn't mean taking three exposures, the key word here is double. Why is this so hard for some to understand? If you want to interpret the challenge titles differently well do so but don't expect everyone to jump on the bandwagon with you. Why not work with the challenge title and description as it is written and not as it is interpreted by 500 different people?

Why have titles and descriptions for challenges? Why not have free studies every Sunday and Tuesday? Here's a sample title; Take a Picture, but I'm sure some still won't know what to photograph though....

Bear_Music

Samsung Galaxy S24 Ultra

Sony 24-70mm F4 Vario-Tessar T* FE OSS

04/24/2010 11:46:20 AM · #59

Originally posted by Jac:

Then quote me Robert, not someone else.

Actually, I didn't quote ANYONE in the referenced post.

Anyway, I believe you are being amazingly rigid. Double exposures are illegal. We cannot do them in basic or in advanced. We have been told to stay withing basic rules and "create a double exposure effect". How you morph from that into saying only ONE particular "technique" for creating the effect is valid, I don't know.

Because you have to face up to one thing: double exposures are illegal; we can't do them. There's no way we can legally combine "two exposures" into a single image. All we can do is fake it. ONE way of faking it is to put the shutter on bulb, cover the lens, and fire flashes while rearranging the subject during the single, long exposure. Another way of faking it is to do night shots and rotate the camera with the lens covered, as above. But in the end, these are all single exposures, the shutter was only opened once.

Now, you can go all nit-picky and say that these are "closer" to a double exposure than anything else we can legally do, but that's venturing into angels-on-the-head-of-a-pin territory when you try to adjust your personal filter that minutely. If it works to make me think "cool double exposure", then that's good enough for me.

R.

Message edited by author 2010-04-24 11:50:41.

LindaLee

Canon EOS-40D

Canon EF 70-200mm f/2.8L IS USM

04/24/2010 11:54:23 AM · #60

Originally posted by Jac:

I'm sorry but this challenge title is clear and to the point. You need two exposures to qualify, anything else is DNMC. A reflection is one exposure. A triple exposure is three exposures, not two. I'm sticking to the challenge description and will vote accordingly. I hope you all do reflections and triple exposures, I really do.

A double exposure effect doesn't mean taking three exposures, the key word here is double. Why is this so hard for some to understand? If you want to interpret the challenge titles differently well do so but don't expect everyone to jump on the bandwagon with you. Why not work with the challenge title and description as it is written and not as it is interpreted by 500 different people?

Why have titles and descriptions for challenges? Why not have free studies every Sunday and Tuesday? Here's a sample title; Take a Picture, but I'm sure some still won't know what to photograph though....

I understand what you are saying Jac, but I definitely don't agree.

If it JUST said "Double Exposure", I would most certainly be in agreement. BUT...it is qualified by using the word "EFFECT", and that changes everything. The word "effect" is being used as a noun here, meaning "an illusory phenomenon".

So it is saying to produce a double exposure EFFECT (illusion) using one of various "techniques"; ie: reflection, mirror, etc.

Canon EF 70-200mm f/2.8L IS USM

04/24/2010 12:04:24 PM · #61

I'd like a clarification on why double exposure is illegal on basic editing? I am guessing that this is referring to the rule that a photo should be a single capture.

The way I understand exposure and capture is the following: exposure is the shining of a sensor (film) with light, capture is collecting that light and outputting electrons (or, developing the negative). So, I understand that one can have multiple exposures, that's to say, one can shine the sensor several times, with a single flip of the mirror, which would constitute a capture.

So, what is the mistake in my thinking?

LindaLee

Canon EOS-40D

04/24/2010 12:11:41 PM · #62

Originally posted by gjumi:

As long as you only click the shutter ONE time, you can expose the sensor as much as you like.

Canon 12x IS USM (S3 IS built-in Lens) -- 36-432mm (35mm EQ)

04/24/2010 12:15:12 PM · #63

Originally posted by LindaLee:

As long as you only click the shutter ONE time, you can expose the sensor as much as you like.

So, double exposure is legal in basic editing, right?

GeneralE

Canon PowerShot S3 IS

04/24/2010 12:21:15 PM · #64

Originally posted by gjumi:

Originally posted by LindaLee:

As long as you only click the shutter ONE time, you can expose the sensor as much as you like.

So, double exposure is legal in basic editing, right?

If it is made with a single shutter actuation and is captured in a single frame. That's what this challenge is all about

Some cameras allow for the shutter to be actuated multiple times and the results combined and saved in a single file -- those are not legal under Basic rules.

DrAchoo

Panasonic Lumix DMC-LX5

04/24/2010 12:25:29 PM · #65

Originally posted by Jac:

Originally posted by Bear_Music:

Originally posted by HawkeyeLonewolf:

What ARE you talking about? Who are you ranting at?

double-exposure effect is 100% correct.

triple-exposure effect is 0% correct.

Not you. You weren't debating whether the reflections were DE. Sorry for the confusion. It was Jac's position I was debating above.

R.

Then quote me Robert, not someone else.

I'm sorry but this challenge title is clear and to the point. You need two exposures to qualify, anything else is DNMC. A reflection is one exposure. A triple exposure is three exposures, not two. I'm sticking to the challenge description and will vote accordingly. I hope you all do reflections and triple exposures, I really do.

A double exposure effect doesn't mean taking three exposures, the key word here is double. Why is this so hard for some to understand? If you want to interpret the challenge titles differently well do so but don't expect everyone to jump on the bandwagon with you. Why not work with the challenge title and description as it is written and not as it is interpreted by 500 different people?

Why have titles and descriptions for challenges? Why not have free studies every Sunday and Tuesday? Here's a sample title; Take a Picture, but I'm sure some still won't know what to photograph though....

Jac, like I said above, I wrote the description and title. It's obvious that no entry is going to be a true double exposure. They are all going to be single exposures (or get DQ'd). I used the word "effect" to mitigate that. Reflections weren't what I quite had in mind, but they certainly could lead to a double exposure "effect". What if I had a reflection AND a double exposure? :)

04/24/2010 12:26:17 PM · #66

Got it, thanks!

04/24/2010 12:38:38 PM · #67

Originally posted by DrAchoo:

It's obvious that no entry is going to be a true double exposure. They are all going to be single exposures (or get DQ'd).

Would you care to explain, because it is not obvious to me? How would I get DQ'd, when a few posts above I say that you can do double (or multiple, if you wish) exposures even in basic editing, with the old technique of shutter opens - put on the cap - remove the cap -put on the cap - remove the cap - put on the cap - shutter closes?
Thanks!

klkitchens

Pentax K-1

Pentax FA 50mm f/1.4 AF

04/24/2010 12:44:07 PM · #68

Originally posted by LindaLee:

Originally posted by Jac:

I'm sorry but this challenge title is clear and to the point. You need two exposures to qualify, anything else is DNMC. A reflection is one exposure. A triple exposure is three exposures, not two. I'm sticking to the challenge description and will vote accordingly. I hope you all do reflections and triple exposures, I really do.

A double exposure effect doesn't mean taking three exposures, the key word here is double. Why is this so hard for some to understand? If you want to interpret the challenge titles differently well do so but don't expect everyone to jump on the bandwagon with you. Why not work with the challenge title and description as it is written and not as it is interpreted by 500 different people?

Why have titles and descriptions for challenges? Why not have free studies every Sunday and Tuesday? Here's a sample title; Take a Picture, but I'm sure some still won't know what to photograph though....

I understand what you are saying Jac, but I definitely don't agree.

If it JUST said "Double Exposure", I would most certainly be in agreement. BUT...it is qualified by using the word "EFFECT", and that changes everything. The word "effect" is being used as a noun here, meaning "an illusory phenomenon".

So it is saying to produce a double exposure EFFECT (illusion) using one of various "techniques"; ie: reflection, mirror, etc.

Agreed. Any legal method to get a double exposure effect is valid. But if you create a triple exposure effect, then it's DNMC. Clearly.

TrollMan

Fujifilm X-T4

Fujifilm XF 35mm f/1.4

04/24/2010 01:04:12 PM · #69

Is this where the dummies hang out? :p

DrAchoo

Panasonic Lumix DMC-LX5

04/24/2010 01:14:21 PM · #70

Originally posted by gjumi:

Originally posted by DrAchoo:
It's obvious that no entry is going to be a true double exposure. They are all going to be single exposures (or get DQ'd).

Would you care to explain, because it is not obvious to me? How would I get DQ'd, when a few posts above I say that you can do double (or multiple, if you wish) exposures even in basic editing, with the old technique of shutter opens - put on the cap - remove the cap -put on the cap - remove the cap - put on the cap - shutter closes?
Thanks!

That's just fine. What I'm talking about is where the shutter itself opens and closes twice. That's a TRUE double exposure (from the film days) and that's illegal. The lenscap method is one of the best ways to accomplish the effect for DPC.