LIGHTING AND LENSING WORKSHOP - DAY 3

First session-

Like the previous day, i reached the department at 9.40 in the morning. I did my assignment. I asks some of my friends whether they have done it or not. Most of us wrote it, but one of my friend do not write.  There we go,  we are stuck again. I can feel the tension of my friend. He purposely do not write the blog. 

Everyone of us are in the classroom, our phones are switch off and place it on the table. We are waiting for the Sir to come.  I was thinking how the day would go, having no clue in my mind what will happen next. Sir comes in and he greets each one of us with a wide smile on his face " Good Morning".

Like the previous day , he asks us whether we have done the assignments or not.  Most of us do not answer to his question. Jj slowly raise his hand and says he has not done it. Sir, in little disappointment. Sir tells us to changed our fake blog name . Example ''DIDILOO blog as he is finding difficult to understand who DIDILOO is? We went to internet room and changed it with our real name.. Sir also told Hari to sent through blog instead of sending ppt. He willingly accepted.

As time pass by, the conversations between students and Mr. Tanmay goes into extreme.  Mr. Tanmay moderates the first session. JJ throws out all his frustrations whatever come to his mind. Mr. Tanmay make a statement that if i raise my hand "everyone should stop talking". JJ keep speaking. Sir raise his hand  "Stop it! Listen, Stop it. Are you clear? he said. Yes Sir, i understand, JJ in agreement but still he wants to say something more.  Sir tells him to give others a chance to speak as  he has spoke so much. 

Sreecheta and Mainak comes up with another argument. I am not too clear about the argument. Sir and Mainak also discuss about Anarchy which i failed  to sync with them. Argument goes on and on.

Turning point -  Commitment. As the workshop goes on, i realize we are lacking commitment so much behind. It was fun though it pushes us into extreme mental state. Mr. Tanmay handles the situation coolly setting his principles in mind. Mr. Tanmay dealt with us in a broaden perspectives and that is the most interesting part of the workshop. 

I begin to understand slowly, feel and realise the important of this workshop.  We begin to leave our ego, mistakes and work together as a team.  

Second session-

Second session sets up the mood.  We make the chair round and we are waiting for JJ to come. Meantime, we discuss about Hari as he wanted to go home i.e Chennai.. Sir gives him a choice to take a decision.Everyone of us speaks out with our view point stating that he cannot join the group once he left the group. Conversations goes on. As JJ did not give any signal of coming for class. Sir tells anyone of us to go and see him without saying a words. Hindol decides to go and see him. Meanwhile, we are talking about Hari. At last, Hari makes a decision and said  'anyway I am going home. Then , sir sent another person to go and check it out. Kirti takes a move to check him this time.

 Discussions went on for 80 minutes.  After 80 minutes, we collect our pin hole camera and went out to check it. We experiment with pin hole camera along with Mr. Tanmay. He clarify our questions.

Shutter speed- 1/60-, Aperture – 8.0, ISO – 1600,  image- experimenting with the source light .

.

 1) 1 hole, 1 inverted image- when we look at the single pin hole camera, the light source get inverted when the light enters into the camera.

 Shutter speed- 1/20, Aperture – 5.6, ISO – 1000, image- inverted image of the filament.
.

Shutter speed- 1/50, Aperture – 2.8, ISO – 1600,image- single hole .

.

2) view finder and reading distance- when we look any object at the closest distant by our eyes, our eye vision is blur. as the distance increases our eye vision becomes clearer and sharper.

3) Remove viewfinder- if we look any object without viewfinder, the image or an object become deem because there is no any protection to cover the light. Viewfinder allows the image to see clearly.

Shutter speed- 1/80, Aperture – 5.6 ISO – 2000, image- without eye piece hood .

.

4) why see bright and not the others- our eyes sensitivity catches the brightest source of light and it cannot register  the low intensity of light from other object.

Shutter speed- 1/20, Aperture – 5.6, ISO – 1000,image-brightest object .

 .

5) movement of image- As the camera pans toward left, the image that we captures exit from left. This is because the image is inverted. Example- it apply to mirror.

6) Two pin- holes -  We make another hole and tested. Two images are formed when we look through the viewfinder.

Shutter speed- 1/20, Aperture – 5.6, ISO – 1600,image-two holes .

                        Shutter speed- 1/13, Aperture – 5.6, ISO – 800,image-two holes images .
 .

7) Bigger hole -  We make the hole slightly bigger and tested. When we make the hole bigger, light enters more but the image become blurred compare to the original one. The sharpness also decreases.

                 Shutter speed- 1/40, Aperture – 5.8, ISO – 1600, 

image- one hole

                   Shutter speed- 1/40, Aperture – 5.8, ISO – 1600, image- blurred image.

8) one hole and three holes together - When we look at the three pin hole camera, the closest holes looks together giving us a blur image and the hole in distant can be vividly seen. This is because the two holes are too close for our eye to notice. They appear together giving us a bigger blurry image. 

                        Shutter speed- 1/40, Aperture – 5.8, ISO – 1600,image- multiply image .

                                                     

                         Shutter speed- 1/40, Aperture – 5.8, ISO – 1600,image- three holes .

9) Macro-   We also tested with camera by clicking the pin hole camera with and without magnifying glass in a fixed lens.

Shutter speed- 1/400, Aperture – 5.6, ISO – 1600, Len- wide lens, image-without magnifying glass.

Shutter speed- 1/400, Aperture – 5.6, ISO – 1600, Len- wide lens, image- with magnifying glass

10) diameter of the tube- More the bigger diameter, larger the image, Smaller the diameter, smaller the image. 

Shutter speed- 1/60, Aperture – 4.5, ISO – 1600, image-two different camera.

Shutter speed- 1/60, Aperture – 4.5, ISO – 1600, image-.bigger diameter

Shutter speed- 1/60, Aperture – 4.5, ISO – 1600, image - smaller diameter.

11) length of the tube-  when we look any object with a smaller length of tube,  the image size is smaller. And when we look at a longer length of tube, the image appears bigger.

Shutter speed- 1/400, Aperture – 5.6, ISO – 1600, image-.smaller length of tube.

                    Shutter speed- 1/100, Aperture – 5.6, ISO – 1600,image-.longer length tube .

                  Shutter speed- 1/400, Aperture – 5.6, ISO – 160,image-two different length. 

 After we are done with the experiment,  we are relax and happy. We were in the corridor discussing about today event. Hari comes toward us and said Should i at least come as an observer in the set?  Mr. Tanmay calls everyone of us  and said " Guys, what should we do about this?  As  a team we all agreed to his request.  At last  Mr. Tanmay encourages us and makes our day end beautiful.

LIGHTING & LENSING WORKSHOP DAY -2

Last hour preparation-

I reached Department of Direction & SPW at around 9:30 in the morning with little worries in my mind as I haven’t done my assignment.  I walk into the classroom and saw some of my friends.  I asked to them, whether they have finish the assignment or not, some says they did it and some says they don’t.  I was a bit relieved as I was not the only one but still I felt myself as irresponsible person.  So, I went to internet room to do my assignment as it was a bit early for the class to begin.

Few minutes later-

First session-

I switched off my phone and place it on the table. There are four or five phones on the table. I take my seat and waits for the teacher to come. After some minutes, Sir comes in with a gentle smile and asks us whether everybody has done the task of the previous day i.e blogging.  Some says they did it, some says they don’t and some says it’s on half way. But me, I said nothing. 

As he listens to our answer, he says he can’t proceed today class unless everyone submit the previous day task. He says he will meet us at 2 in the afternoon. He gives us a day break to finish the task.

After he left, we discuss ourselves and start doing the assignment till we finished.

It was of course my fault as I have not completed the task. I felt my mistakes.

Second session-

Second session starts with the discussion of tackling the problem. We all give our view point’s relating to solve the problem. It went on and on till 3.30 pm.

At around 4pm, everyone of us makes a pin hole camera. We completed by 5.20 in the evening and tested our pin hole camera through tube light.

QUESTIONS-

1. If the human eye has a lens of variable focal length then why doesn’t the image magnification change when the focal length changes, i.e. why can’t we zoom in as we do in a camera?

A- we can't zoom in or out in human eye because human eye has simple lens set up. For zooming , it needs to increase or decrease the image size which can be done with a compound lens set up like in camera.

2.Post eye surgery, how does the newly implanted lens adapt to the “accommodation” mechanism of the eye?

A- The most important change has been the development and improvement of artificial replacement lenses. These plastic lens implants are only one-quarter of an inch wide and can be permanently inserted into the eye to replace the cloudy lens that has been removed. Artificial lens implants have improved over time. So have the surgical techniques we use to remove the cataract. We now use a small incision method called phacoemulsification, which uses a tiny vibrating blunt needle to ultrasonically break up the cloudy lens into fragments that are gently removed through the same needle. This is microsurgery — the surgeon uses a microscope to operate through a tiny incision measuring less than one-eighth of an inch wide. The incision is so small that it typically does not require sutures and there is no bleeding. The goal of he newest artificial lenses, which are called multifocal lenses. These are designed to produce a dual focus, where part of the lens is set for distance focus, and part of the lens is set for near. The design is entirely different from bifocal eyeglasses, however, where you look through the top portion for distance and the bottom area for near. With a multifocal lens implant the brain automatically finds the correct focus.