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12-17-2015, 10:39 AM   #1
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Beginner in Macro Photography

Do i really need a Flash for my 100mm 2.8 Macro?



I have a K3II

12-17-2015, 10:46 AM   #2
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Welcome to the forum!
No you don't.
I prefer it with natural light, though you can get a ring flashh that goes on the end of your lens.
12-17-2015, 11:04 AM   #3
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No, you don't absolutely need one. But a flash will help a lot!
12-17-2015, 11:18 AM   #4
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You do not need it but it is recommended (with a diffuser).

12-17-2015, 12:01 PM   #5
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Not if there's enough sun and you're doing outdoor work. If you're indoors, some bright lights will do just as well as a flash.

A flash can really help freeze motion, though, and let you use smaller apertures for deeper depth of field.
12-17-2015, 12:13 PM   #6
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Same aa any subject, Bitofsalt. You can control your lighting. You can fill in a dramatically backlit scene, make a subject very 3D by bouncing or using the flash off-camera, get background separation and so on.

Btw, a reflector will also do some of these things, and unlike people, flowers and objets d'art don't squint. :-)
12-17-2015, 09:10 PM   #7
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Not absolutely required but highly recommended.

Outdoors in full sun at ISO200, f16 for some depth of field you'll be getting shutter speeds of 1/60, maybe 1/125 if you're lucky, and you probably can't hold the camera still enough to eliminate motion blur taking macro shots, which means you're using more magnification. And image magnification also means it magnifies motion as well.

With flash, you can shoot at ISO100, f16 at 1/180 which will handle a lot of the motion blur, and help stop motion, let you use an aperture that small for depth of field.

Depth of field is a major issue, when you focus a couple of inches away it's almost nonexistent, which is why I usually try for f16 if possible. My flash has variable power levels, so I can turn it down if it's too bright, it usually is. If yours does not a cheap diffuser can be made from a cash register receipt.

Depending on what you shoot, a tripod also may or not be useful. For insects, forget it. Most insects and spiders are long gone before you can get it in place. For flowers or still life, a tripod is great. Otherwise you have to learn to hold the camera very steady. A monopod may help in some cases, but still not easy to use with insects.
12-17-2015, 09:27 PM - 1 Like   #8
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It really depends on what you are shooting. I have great fun shooting a bunch of "hot wheels" toy cars once..... 10 second exposures where fine as nothing moved.......

But realistically, due to Depth of focus issues, anything that might move needs good light.....

12-17-2015, 09:36 PM   #9
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You don't have to have one, but like others have said, in some situations it does help (and depends what/where you're shooting).
12-18-2015, 02:57 PM   #10
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What are you trying to photograph?

I'll almost never be without a flash (or two (or three)) on hand when I've got my macro out. Or a tripod (or two (or three)) for that matter. Or a reflector/diffuser (or two (or three)). But it really, really, really depends on what you're trying to do and how you prefer to do it. There's no one approach that works for every subject and every photographer.
12-20-2015, 07:23 AM   #11
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I suggest you go without a flash until you find that you need one. I do a lot of macro with 100 mm f/2.8 macro, and mostly without flash.

Cheers,
12-26-2015, 06:35 PM   #12
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Welcome,

I have not used a flash yet,down the road get a ring. For now a small reflector or diffuser, many times just use a small piece of construction paper.

Brian
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