I have tried using this with my Sigma 18-35mm F1.8 DC HSM and at 1.8 with a max speed of 200 almost everything I shoot is overexposed. Help?
1118969
Are you using a light meter and setting your camera to the values the meter provides? If not, that would be an awesome place to start....
1118970
Assuming his was bought for macro, why are you shooting at 1.8? I rarely shoot at anything below f14 when using this flash.
773408
So the 18-55 shouldnt be on?? i used it with my 18-55 but i do have a set focal legnth lens i could try too?
136113
I have the 20mm/1.7, the 12-35, 35-100 and the 12-42. None will do this. I suggest an adapter and a bellows system. Novoflex makes adapters for several camera brands e.g. Canon, then find an inexpensive bellows here on Amazon and attach it. Only then will you be able to get that close. It will require manual focus and metering.
518572
Yes, I noticed the same thing, you may want to change the ISO speed depending on what your shooting. Remember when using film in the old days, you would purchase 100, 200, 400, etc. The choice was depending on the numbers of what makes your photos grainy/smooth. Try the ISO change and see if that makes a difference. This camera doesn't work well if your image moves. Works well if your image is still. Also you could change the pixel size of the image to a smaller one, this might help also. Good luck!
1435464
I placed this lens on a Nikon N80 35mm camera and the image jerked a couple of times then began focusing normally. It only happened when I initially attached the lens and first turned the camera on. Not sure if the lens is totally compatible with 35mm. Did you attach it to a 35mm or digital? Did you determine the cause and was the lens not working correctly?
379183
Your probably too close for what the lense your using can handle. Have you tried auto focus? For macro shots its almost easier to use anyways.
595976
I haven't owned this lens for very long but I've had very good results with it so far. I mainly shoot with automatic settings and the camera adjusts the aperture for each picture of course. It is not always on f/2.8. It varies, depending on the light conditions, etc. if you shoot manually you can keep it on f/2.8 if you want. That is simply the largest aperture setting you can use on this lens. You CAN change it to a smaller aperture if you want.
1752185
I have the metabones + Sigma 18-35. It broke my wallet but I think its worth it in versatility. Heres some sample footage I got with it. Great in low light. https://www.youtube.com/watch?v=geaML88EBpU
1528110
I used it with the Minolta 200mm f2.8 and was not very pleased with the quality of the image. I was hoping to be to gain the distance, but, it took away from what quality I loved in the lens so I decided to send it back.
2267994
Are you shooting manual or automatic? I shoot mainly manual when I use this using pretty standard settings. ISO 200 f/14 and 1/200th second.I don't know what your max sync rate is but that may be the issue.
101689
I don't have enough information yet....what other lenses do you own, and what camera would you be shooting with? Are you the main photographer? Are you bringing lights or at least a high(er) powered flash unit? This is a great lens for macro use, but with a maximum aperture of f/2.8 this cannot be considered a fast lens at all. While a 50mm lens is fantastic for shooting in a more photojournalistic style, you will probably want something a little longer for portraits (especially if you're using a full-frame digital or film camera). Please respond with what camera(s) you'll be using and what other lenses you own and I'll give you more detail
1875333
This is strictly for macro. Focusing on anything that isn't at the closest focal point is impossible. It is also recommended that you use a lens with a shorter zoom level. This is basically incompatible with my 250mm. I can only imagine how much worse it is with a 400mm.
401428
Please, see the chart shown in this Sigma site page: http://www.sigmaphoto.com/product/sigma-usb-dockIt shows that for 18-200mm F3.5-6.3 DC MACRO OS HSM it is only possible to update firmware and adjust the Focus Setting.
1414086
I have used mine for astrophotography but it is on the slow end if what is possible. For occasional use it is fine, but if this will be its main use you may well get frustrated. How well does your camera handle noise at high ISO? I don't think 1/3 stop should make enough difference for you to change your mind if this is the lens you prefer. It is very light and the IQ on full frame is fantastic. I have since bought a 24 - 70 f2.8 and despite the longer focal length I use this at night for the extra speed. So for dedicated astrophotography lens consider something faster. For occasional use it will do the job. I have used mine for astrophotography but it is on the slow end if what is possible. For occasional use it is fine, but if this will be its main use you may well get frustrated. How well does your camera handle noise at high ISO? I don't think 1/3 stop should make enough difference for you to change your mind if this is the lens you prefer. It is very light and the IQ on full frame is fantastic. I have since bought a 24 - 70 f2.8 and despite the longer focal length I use this at night for the extra speed. So for dedicated astrophotography lens consider something faster. For occasional use... » Read More I have used mine for astrophotography but it is on the slow end if what is possible. For occasional use it is fine, but if this will be its main use you may well get frustrated. How well does your camera handle noise at high ISO? I don't think 1/3 stop should make enough difference for you to change your mind if this is the lens you prefer. It is very light and the IQ on full frame is fantastic. I have since bought a 24 - 70 f2.8 and despite the longer focal length I use this at night for the extra speed. So for dedicated astrophotography lens consider something faster. For occasional use it will do the job. « Show Less
202339
it won't work with any full frame cameras.Hint, on sigma references DC means it works with APS-C sensors and DG means it works perfectly with full frame sensor and can be used on APS-C cameras too with different focal length.
69238
This is a simple sync speed issue. Nothing to do with the flash extender. You're using too fast a shutter speed. Need to get under 1/250-1/200 depending on camera maker. Or, get a flash with high-speed sync capability.
46363
thank you for your recommendations. i've bought the hoya shmc filters for my lenses. they're great.do you have the sigma 50mm f1.4 lens? if yes, what are you shooting? do you flickr?thanks again.