PenguinPhotoCo Thanks for that great response. I have done my research as far as my business plan goes, getting clients, shooting in the room etc. etc. but thanks for your thoughts. I won't make tons of money being a birth photographer I know that so I don't really want $20,000 worth of lenses yet. I am looking for a lens that is good enough to start my business. I want a zoom but everyone tells me I need a prime to get good enough quality I just wanted to hear other professionals opinion. Thanks for giving me yours ....
Sounds like you've given it some though - good!
Here is what options I seem to have
Sigma Model: 24-70mm f2.8 EX DG Macro/NI $669
I had the tamron version of this -sharp but slow to focus (compared to any canon lens with USM). Unless this is an updated version (less than 4 years) I'd steer clear. Check out the tamron (28-70 I think).
May be a bit long even on the wide end on a cropped body.
Sigma 17-50mm f2.8 EX DCOS HSM Nikon $799
Nikon 17-55mm f2.8G ED-IF AF-S DX Zoom-Nikkor $1399
the nikon will be the better choice - it will also hold it's value better so when
if you decide to sell it you'll get most if not all your money back. I bought the canon version 4 years ago for $950 and am now selling it. I can prolly get $850-900 for it. Before I had it I had a sigma 18-50 2.8 (ver 1) and it was a decent lens but not sharp wide open. I lost more than $100 when I sold it - about 25% of it's value new. Not a good investment.
Nikon 24-70mm f2.8G ED AF-S Nikkor $1799
Better than the sigma lens or even the tammy, but yeah, pricey SOB, huh? Prolly gonna be too 'long' even on the wide end.
What lens you need will depend on how you 'see' things. If you can get in close then more than 75mm won't be needed, but if you gotta stay back and want a closeup of the baby coming out you'll want 100-150mm. On the other hand to get an overall view of the action you'll likely need something like 15-25mm. And since changing lenses takes time a second body with the other lens on it would be a good thing to have, and the second body would act as backup as well (odds of 2 bodies failing on the same shoot is astronomical).
Remember that if a body or your main lens dies, acts up, etc and you don't have any backup you can't finish the job, will have to refund their money, apologize forever, have to deal wtih the bad WOM they'll spread about you (deservedly so). Even a used 40D or film body -
some kind of backup is mandatory for anyone charging money.
or
Nikon 24-120mm f3.5-5.6G ED-IF AF-S VR Zoom-Nikkor $699
5.6 is way slow, as in dark, for anything but flash or outside daylight. Remember that delivery rooms are gonna have all sorts of odd colored lighting and no windows. I've already mentioned some about flash but add in shadows (from heads, hands in teh way) and mixed light I'd avoid it like the plague - so you'll need fast glass.
Primes are faster (usually) than 2.8 zooms but you'll have to know what focal length you'll be usiing so you know what to buy and you'll want several to cover a range...
Most pros have the 24-70 (or 17-50) range, 70-200 2.8, a prime (often a 50mm 1.4 or so) as the basics. I love shooting wide so a 12-24, 16-35 or similar is a must for me.
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If I knew how to take a good picture I'd do it every time.