Steve Dollar wrote:
I have a granddaughter who has just started her photography business. She has purchased a Nikon 750 with kit lens. She already has a few gigs, including a wedding. She has a wonderful eye and has produced some excellent photos. She doesn't have a prime lens. What prime lens would you recommend for her head shots. I believe that a 100mm more or less but what manufacturer. I could buy her the Nikor but is that really what is needed and is that the price one needs to pay?
Have you talked with her about this? She may want something entirely different.
You mention a "750", by which I assume you mean the Nikon D750 full frame camera. You aren't specific about what "kit lens" she got with it, but it appears to normally come with Nikkor 24-120mm lens. So any "portrait" prime such as 85mm will duplicate focal lengths she's already got.
Wedding photographers often use 50mm lenses (or there-abouts) for full length portraits of bride, groom and the rest of the wedding party. But, once, again, that's a focal length she's already got covered.
Some wedding photographers only use zooms... 16-35mm, 24-70mm f/2.8, 70-200mm f/2.8. Others use primes a lot... 50mm, 85mm, perhaps a 100mm macro. Of course they aren't an option in her case, but I know Canon's ultra large aperture 50mm f/1.2L and 85mm f/1.2L are very popular among wedding photographers, for the unique, "dreamy" look that's possible with them. Canon has just introduced a 28-70mm f/2 zoom, which I expect will be popular for wedding photography too, but it's in the new RF-mount for their full frame mirrorless R-series cameras only.
Sigma and Tamron have some very nice lenses, but she may prefer to stick with OEM.
Maybe she needs a wider lens for architectural shots... Or maybe a longer tele for discrete shooting from a distance.... Or maybe a macro lens for close-ups of rings and wedding cake details.
Or maybe she'd benefit more from a flash or some other accessory.
I think it's great you want to help her get started, but I think you may be asking the wrong people what she needs. She can tell you, far better than we can.