16mm --> Wide angle Lens
18-55 --> Daily use
75300 --> Ultra zoom

above 3 you can do most of what nex can do. And most of time you dont need carry all 3 around, just know what you going for the pick the one suit.

18-200 --> Travel lens..
Ease when you travel so one lens cover most of area. and if allow AF 

My advise is keep current what you had

I dunno much about lens, but 75300 should be a long zoom lens. Normally used to shoot animal or sport, those thing that required you to zoom very far. Normal user seldom need to zoom that far to shoot an object, that's why you seldom use it. 1855 is normal zoom lens for everyday use, 16mm is for landscape shooting(normally). Hope this can clear your mind abit 

Sad.. only Sony Nex-5N can use the new EVF....

spoil the look, design and portability of the NEX...

i prefer to carry extra batteries...

The ultra wide adapter will change your effective focal length to 12mm. It's a great accessory for only RM300~ Many people agree that the kit 16mm is better with it. The only problem is, with the Ultra Wide adapter attached, you can't use any filters as there aren't any threads on it.

The fish eye adapter is mainly for special effects. It adds a wide circular distortion to the picture. Image google fish eye to get a better idea.

The SEL18200 will be great for video. Different OSS system for that. But, it's pretty pricey. If you're from Penang, there's someone selling a used unit there for only RM1,500 at garage sales forum. Unbeatable price; I would say it's downright mad. If I was from Penang, I would have bought it already.

A new 5N body only can be bought for only RM1,800. Again, quoted from Boeing Sg. Wang. I did not find out if it is AP model or not; I bought my 5N body from the hero of Alpha world, Uncle Chin @ Studio Zaloon. RM2180.

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Added on November 14, 2011, 5:32 pm

I got my entire set from Uncle Chin @ Studio Zaloon.

1)5N Body - RM2180
2)LA-EA2 - RM980
3)SAL35F18 - RM690

It was quite funny; he had no idea Sony Style had the EA2 adapter in stock already. If I didn't ask him about it, he would think it was only coming in January. So he brought in stock the next day for me. Excellent service.

At overlapping focal lengths the 75300 has better across the frame sharpness. However, at 70mm and below, the SEl18200 has very high levels of sharpness. The SEL18200 is a really well made lens; remember with it, you gain optical stabilisation (about 4 stops), making it somewhat usable in low light conditions. With the 75300 you will struggle a bunch. You can try out the LA-EA2 adapter with the 75300, then you will realise why it's called a SSM lens. The EA1 adapter is terrible; just to get aperture control and EXIF data, but handicapped by the slow AF speeds.

Good cameras only provide you with the ability to take good pictures. It won't take good pictures by itself.

axii: Got a link?

Also, the SAL75300 doesn't work on the LA-EA1 with autofocus - it is a screw-drive lens. It isn't very fast on a regular SLR/SLT either.

Overlapping focal lengths = where the focal lengths of both lenses are the same (in this case, 75-200).

Exposure stops take a while to explain, and I'm afraid I'm not very good at it. Typically, F1.4 to F2 ~ 1 stop, F2 to F2.8 ~ 1 stop, 2.8 to 4 ~ 1 stop, and so on, for aperture. When I mean 4 stops, it means the lens can stabilize up till 4 stops. For example, if you shoot at 50mm focal length, you would need to shoot at 1/50 shutter speed or faster to get a non-blurry photo. With 4 stops of OS, you can theoretically shoot at 1/5 shutter speed and still get a sharp photo.

Best to search online on exposure terms. Lots of resources out there.

The EA2 will support the SAL75300 and AF. You will need to go to a shop with a demo unit of the EA2, and find out yourself if it is worth keeping.

EDIT:

For some reason I got confused, and thought you were referring to the SAL70300G, whereas you were actually talking about the SAL75300. Apologies. Man, I am so out of it today >.< Keep reading things wrongly. Sorry. In this case, you will get much better image quality with the SEL18200. Find a demo unit, bring a memory card, and feel it for yourself.

tpl: The EA2 does support AF for the Sony 75-300mm F4.5-5.6.

tpl: You can try it yourself - the 75-300mm F4.5-5.6 is unstabilized on the LA-EA2, and optically you may prefer the 18-200mm's output. The 75-300mm is a rather weak lens.

Just to give you all with the LA-EA2 a heads up:

A user at DPReview has tested it with the Sigma OS lenses, and it works!
http://forums.dpreview.com/forums/readflat...thread=39928375

Here's a video of the OS lens in action:
http://www.youtube.com/watch?v=yFNZPbPkIFo

I'll be picking up a 18-250 in the future