my requitments are :
i need a telefoto zoom lens 70-300mm..

a Micro lens..

and i am thinking weather i should get a 50mm lens or not..


yaa during Macro i use Manual Focusing..
it works way better than AF..

and i am ok with f1.8, (obviously looking at the price, i cant afford a f1.4 or f1.2 lens..)

I guess you missed the "manual focus lens" part!!!
Though they are expensive, they are cheaper than the 50K you were talking about!!
A brand new Nikon 50mm f/1.4 AI is around $400. While a used one would be from $75 to $150 for non-AI/AI (you may try keh!!)

A brand new Nikkor 50mm f/1.2 AI-s is $630 in adorama.com. The used ones dont depreciate much so expect a good asking price for it!! Looking at the used prices i felt, its better to buy a new one!! And its worth the investment. It shall retain the value!!

Hi Pranit,
I suggest you don't buy any lens before you understand the technical part of photography. The three lenses you are looking for are for different purpose. First understand what they do and what you want to shoot. For e.g 70-300 is a telephoto zoom lens. This lens will bring the far object nearer. The 50mm with it's larger aperture will allow you to shoot in very low light. The macro lens allows you to focus closer to an object than other lenses so that they can fill your frame with the object. (You must have known that every lens has a minimum focusing distance).
Photography is just like painting. Other than being creative in painting the painter has to learn to use the tools. He has to understand the mixing of colours, the useage of different types of brush, different types of paper or canvas. Similarly in photography you have to learn the useage of tools like focal length, aperture, shutter, ISO and if you are shooting DLSR then learn to use raw files and process. You need to put an effort to understand all this things. After that you will really enjoy photography.
Sorry for such a long post.
Henry

Is it??? If so can you tell by how much distance?? (pun intended!! )
As far as I know a tele lens has a smaller field of view (when compared to a wide / normal lens). There by the subject occupies more area of the sensor/film than in case of a wide lens!!

i get what u all want to say..
@henry..
thanks to the detailed explanation buddy..
really appretiate it..

i want a telephoto lens so that i can get a greater zoom and so on, (but i am currently happy with the 18-105mm);

now about the micro lens, i need a 105mm or a 90mm micro lens, (because i love micro photography, and would like to go in deep in it); (but i cant afford a micro lens at this point)
(i am taking price in mind, because my dad is giving me the lenses i am not self employed..)

and about the 50mm lens, i have heard that by using a extension tube or a closeup filter u can get nice micro shots, i suppose that may be because of the greater f number (which gives a greater depth of field).. (correct me if i am wrong)..

I dont know what would be the f-numbers like when used reversed!!! But from my experience......damn!!! you get extremely narrow dof!! here are some pics I clicked with a reversed M42 Helios 58mm f2 lens on a canon P&S camera(A610):









Mind you the pics were taken with holding the camera in one hand and the lens in other hand, hence focusing was a bit difficult. If you could get a reversal lens adapter, you could reduce the shake a lot better and keep the subject in the focus!!!

ya i have heard of this technique ..
but is it ok for the lens, like it wont damage the lens naa, because the backside of the lens will be open naa..

Hi Pranit,
There are different ways to shoot macro pictures. The easiest and least expensive is to add a diopter in front of your existing lens 18-105. This is nothing but a magnifying glass that can be fitted in front of your lens like a filter. The diopter comes in different power to get different magnification. The quality is not got great but still acceptable. There are better diaopter manufactured by Canon and Nikon that gives good quality but the cost is so high that you can buy a dedicated macro lens. This is where a lens like 50mm with large aperture comes handy. You can attach the 50mm in reverse via reversing ring in front of your 18-105 and get good magnification. The 50mm works like a high quality diaopter. The drawback is you get vignette (dark circular band) around the pictures because the back side of the 50mm has a small circular lens.
You can also use 50mm directly in reverse on the camera mount, but here you need to get this reversing mount.
Another option is to use a device (extenders) to move your lens further away from your sensor. The further the lens the closer you can focus. The drawback is you lose infinity focus. That means if you are shooting macro and then if you see an elephant you cannot focus on it until you remove the extender and connect the lens directly to the mount. The amount of magnification depends on the focal length of the lens and the amount of extension. That means if you are using a 50mm lens and the extender is 50mm in length then you get magnification of life size. That is the size of the subject you shoot will fill the size of your sensor.
Then of course you have dedicated macro lens. Macro lens is just like your normal lens but has an extender built in.
In all the above method the best way to focus your subject is not in auto focus (even with the best macro lens) but manually. When reversing the lens you have to focus by moving your camera back and forth. Also to remember that while shooting in macro there is loss of light because the light has to travel a greater distance to reach the sensor due to extensions used. This is not a problem with diaopters. Another big factor to consider is the narrow depth of field you get while shooting macro. To get some depth in focus of your subject you need to stop down (small opening of the aperture) to f/16 or above. For this you need lot of light or use an external flash. Also a tripod is mandatory to keep your camera still.
All the best.
Henry

^^

Very informative... Thanks a ton Henry!!!

Fantastic explanation sir. This post should be referred by all who start to think about macro photography.

that was a really great explanation ..
so now what do you suggest me to do..

Henry, nice explanation; very informative to the beginners.

At the moment hold on. First understand the technicalities of photography. You can learn through books, workshops or web. There is lot of information on web. Then you'll understand what lens or camera to buy.
At the most you can buy an 50mm, f/1.8 because this lens will help you learn and understand the technical part of photography. Also, it is not expensive and this is the lens every photographer will get now or latter.
Macro photography is altogether different ball game compared to normal photography. You see a different world that you don't see with your naked eyes. In short, the extreme magnification in macro photography creates depth-of-filed problems, camera shake and due to the close proximity you have to shoot to the subject.
I would suggest you first understand the role of aperture, shutter and ISO in photography and the different field of view that different focal length lens creates. Also understand the importance of the size of camera sensor. At the moment if you have a point and shoot camera, use that for macro pictures. This camera is much suited for macro photography.
Henry

thank you sir..
will wait as you said..
and as you said use a P&S camera for macro..
i currently do that most often..
thanks a lot for for making me understand ..

Warm Regards..

The following are links to website where you can learn photography.

Classroom - MorgueFile
I would rate this as number 1 because there are lesson for you to practice. For the start do the lessons from 1 to 4. Jodie Coston is funny. You'll enjoy her lessons.

Digital Photography Tutorials
This is also a very good website to learn photography. But there are advance lessons also. I suggest you concentrate on the Basics and do the

• Understanding Camera Exposure: Aperture, ISO & Shutter Speed
• Understanding Camera Metering
• Understanding Camera Lenses: Focal Length & Aperture

If you find difficulty in understanding any lesson you can post your questions here, I and others can try to explain.
So, all the best,
Henry