Philnw2
Senior Member
I have an opportunity coming up to photograph a large piece of architecture, and so have been stewing how best to do it.
What i received yesterday was a Sigma 15mm EX DG Fisheye F2.8. BHphoto only has the version for Sigma mount or Canon.
a. Weights about 332gms
b. 180 deg view
c. I'm using it on an MC-11 adapter with an A7rII
d. It manually focuses great with just the right amount of resistance to movement - no wireless here.
d. Sigma makes small med and large fisheyes from about 5mm, 8mm and finally this 15mm. I highly recommend the large 15 and it is the most popular i read somewhere - prob. on the BH site.
With the MC-11 converter, its well behaved. You hear a sort of pleasant low-pitched whirring sound and it focuses. It has the normal amount of LAEA3 functions including the continuous AF with tracking. However, i've noticed that while it focuses fine when the focus point is near the center of the frame, if you're more than a little bit off center, it starts to have difficulty focusing. I assume this has something to do with it being a fisheye. Its not a Sigma ART lens so it defaults to the LAEA3 type of functions. I've used the MC-11 with Canon 85 f1.8, Canon 17-40 and now this Sigma 15 fisheye and it always has worked consistently with no crashes.
Why should one consider a fisheye. Well for me, i think its the ultimate wide angle lens. With LIghtroom, i put in the Sigma make and enter the 15mm, and it automatically gives me the options. There's a distortion slider that lets one go from the normal fisheye look to the defished look, an example follow. In the balloon picture, the colors have been unaltered and one review cited how nice the colors were straight out of the camera - true! It'll be interesting to try this in a wooded environment.
Please join in for anyone having experience with fisheyes on our A7X cameras. Why didn't i go with Canon's 8-15 fisheye? Well its a bit heavier and its "only" F4. This Sigma is about the size of the FE 55, which is an advantage to me.
Sigma Fished
Sigma Defished
Colors are great right from lens
--
Phil B
What i received yesterday was a Sigma 15mm EX DG Fisheye F2.8. BHphoto only has the version for Sigma mount or Canon.
a. Weights about 332gms
b. 180 deg view
c. I'm using it on an MC-11 adapter with an A7rII
d. It manually focuses great with just the right amount of resistance to movement - no wireless here.
d. Sigma makes small med and large fisheyes from about 5mm, 8mm and finally this 15mm. I highly recommend the large 15 and it is the most popular i read somewhere - prob. on the BH site.
With the MC-11 converter, its well behaved. You hear a sort of pleasant low-pitched whirring sound and it focuses. It has the normal amount of LAEA3 functions including the continuous AF with tracking. However, i've noticed that while it focuses fine when the focus point is near the center of the frame, if you're more than a little bit off center, it starts to have difficulty focusing. I assume this has something to do with it being a fisheye. Its not a Sigma ART lens so it defaults to the LAEA3 type of functions. I've used the MC-11 with Canon 85 f1.8, Canon 17-40 and now this Sigma 15 fisheye and it always has worked consistently with no crashes.
Why should one consider a fisheye. Well for me, i think its the ultimate wide angle lens. With LIghtroom, i put in the Sigma make and enter the 15mm, and it automatically gives me the options. There's a distortion slider that lets one go from the normal fisheye look to the defished look, an example follow. In the balloon picture, the colors have been unaltered and one review cited how nice the colors were straight out of the camera - true! It'll be interesting to try this in a wooded environment.
Please join in for anyone having experience with fisheyes on our A7X cameras. Why didn't i go with Canon's 8-15 fisheye? Well its a bit heavier and its "only" F4. This Sigma is about the size of the FE 55, which is an advantage to me.
Sigma Fished
Sigma Defished
Colors are great right from lens
--
Phil B
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