Canon Prime Lens 24 mm 40 mm and 50 mm

Canon Prime Lenses 24 mm f 2.8 and 40 mm in comparison with 50 mm f 1.4.

Owning a prime lens is a requirement for any photography enthusiast, now which lens do you choose. Here is a video that explains, with excellent comparisons. I would believe this is a great guide to any novice.


Canon, Prime lens, 24 mm, 40 mm, f 1.4, f 2.8

Air Play for Presentation | iPad integration in Education |Apple TV

Mirror your iPad using Apple TV
Often when you are making a presentation or conducting a PD or even teaching you would require technologies that augment your presentations. Sometimes technologies get too complex and many a time does not integrate very well with the process. Quite a bit of time usually gets used up for setting up of these gadgets.

Newer technologies are emerging now, which can be used seamlessly for your day to day presentations. One of the most attractive and practical device I like is the iPad. The iPad in itself is an amazing piece of hardware which seamlessly integrates into your daily life. Now combine it with an Apple TV, it becomes a powerful device for presentations. The device can turn into either a white-board or a simple Power Point or Keynote Presenter.

When you wirelessly integrate this device by using the Air Play this is one of the most amazing tools any speaker, presenter or teacher can have in making their presentations more effective and even collaborative.

The playlist of videos below show how you can achieve this in a real environment and much more.

i-Clicker | Remote for Power Point | iPhone

i-Clicker Power Point remote
I had a hardware based remote, since the device was left on my laptop all the time it kind of got physically damaged, the whole contraption cost around 40 $. Now that it is dead I have no plans of buying another one at the same price that is when I started looking for an app based remote for my iPhone. Tried the free version of i-Clicker and was able to set it up, took a bit of time but eventually it worked. The free version is good for Power Point files with 15 slides, then it stops working, should restart if you want to continue working.
The paid app costs $9.99, I am not sure if it is worth this price, should have had a price of $ 3 or less as it has some inherent infrastructure problems. At home it works well as you are connected to your home network, but when you are making a presentation while on the move it is kind of difficult to get access to the local network; this can also slow the loading of your slides.
However if you plan to use this as a app on the go on Windows or Mac here is a workaround.(This will eventually cost you the same as a hardware based device) I had an old router lying around at home, which I was not using, so I decided to carry this along to my workplace or anywhere I wanted to use the presentation.

1. Set up a wireless network and connect both your iPhone and your laptop you plan to use to this network. This network need not be connected to the Internet.

2. Make sure you have iTunes installed on your computer as i-Clicker needs the Bonjour service which is used by iTunes

3. Download and install i-Clicker PC control on your computer, this is also available for your Mac.

4. Download and install the i-Clicker app on your iPhone, Android, W7 or windows mobile – it works on all of these phones

Now you are all set to fire up your remote and test your Power Point remote

5. Start your i-Clicker Control on your laptop PC or Mac, you will see the different options available for iPhone select Apple iOS. Here you will see three options
a) Standard wireless
b) Direct Wireless
c) Bonjour
If you have Bonjour installed and shows a green check mark that is the easiest to work, if you plan to use the Standard Wireless it will be a good idea to assign a static IP to your wireless network, as you will need it to configure your app on your iPhone

6. Start your i-Clicker, if it is the lite version it you tell you about the number of pages you can use, click continue, you will get two options
a) Direct connection using Bonjour – Your PC name with .local will indicate it – Select it if you plan to use Bonjour, your iPhone will be connected and then it will give you the option to select new presentation

b) If you go with manual connection, you will have to enter the IP address of your computer and click the blue arrow to continue and it will connect to your computer.
















7. You may have either used choice 6 a) or b) does not matter it will both give you the option to select new presentation
















8. As soon as you have selected new presentation, a browse folder will open up on your PC or Mac, now select the presentation you plan to use.
Now you will see this pop up on your laptop “i-Clicker is preparing your presentation please wait” one this is done your remote goes on to a screen on your iPhone which gives you options for setting up the timer, skip and it will take you to the remote page where you have the left and right red arrows.
















9. You are all ready to use your remote, there are a number of menu options which you can play around with once you are set up.


iPad in the classroom

Tech in education-for teachers
With the evolution of educational technology and blended learning becoming a method of the present in classroom teaching, it is quite pertinent to integrate the newer technologies into your teaching practice, quite often we get hooked on to the past as it is convenient to work with what we already know, change is difficult. However some of the technologies are quite user friendly and much easier to use than one expects. I am exploring ways of doing this, what intrigued me most was how quickly one can start up your iPad, and the time it takes to open your documents or applications is amazingly less, if you compare it to the time one takes to get your pc up and running, that would be a real long wait. This is big time for me, I dont want to loose class time, usually it takes quite some time as most of you know. This in itself a great convenience for me, as I can have my class in engagment mode right away. But to make all this possible these are some of the contraptions and apps that I have brought and installed.

For the iPad
1. A VGA cable for overhead projection from apple $36.99
2. A composite cable for overhead projection with audio $ 79.99 “Can do without this”
3. A stylus $19.99 may be cheaper now
4. If you dont have a composite cable with audio you may need a separate audio system and appropriate output cable
5. Digital overhead projector or an LCD or LED TV

1. ‘Dropbox‘ – Free
2. ‘Keynote’ – $9.99
3. ‘Pages’ – $9.99
4. ‘Note taker’ $4.99
5. ‘iBooks’ – Free
6. ‘Explain Everything’ $2.99 for screen casting – video can be exported to iPhotos and then edited using iMovies

With the above apps you can easily get going and your life could be a lot easy.

Use of hardware
1. The VGA cable makes it possible to mirror your iPad on an overhead projector or a TV which has a PC input or a composite input or a HDMI if you have the HDMI dongle for iPad. Once your projection system is up, you need the software for your lessons. Just plug the cable into your iPad and connect it into your projector.

Use of software and apps
2. I actually did not create any power points or documents on Key note or Pages, instead I have all my documents made in Microsoft office as word, or power point. What I have done is I created an account with dropbox and included all the documents that I want to be available on my iPad in it. Installed the dropbox app on my iPad and synced the files, those files that I wanted offline I made them my favourites, now this will be available all the time.

3. To open my power point I can show the slides directly as is on the overhead from ‘Dropbox’ or if I want to use it as a presentation I can import it into Keynote and save it as a Keynote file. Most of the animations do work right away all it takes is a couple of seconds. So now I have my powerpoint ready to use in Keynote no worries there. The slide show works amazingly.

4. Alternatively if you want to use your documents .doc or .xls or pdf’s there are two options one use the dropbox display as is or import the document into pages, numbers or notetaker if you could save your documents as pdf on your pc and sync it with drop box all your files can be opened in iBooks, this makes it a lot easy as there are no issues with formatting.

5. I find “Explain Everything” better than “Educreations” for exporting documents and editing them in iMovies.

Overall with all these contraptions you actually spend less time for set up of your class with flexibility in the type of interactive media that you have at minimal cost. Trust me the iPad will go a long way in education in the coming years.