All Forum Comments
Comment by derek897 posted on A few macros at 18/03/2017 - 00:13
Excellent example David, cheers for that
Comment by derek897 posted on A few macros at 16/03/2017 - 22:19
Thanks for the links and tips guys.
I do know that with tubes I wont have a huge dof, but I often like the weird resulting effect that extreme narrow dof gives.
Looking forward to trying out the new tubes with contacts with my kit.
I also have a raynox dcr 250 and 505. The 250 is useful but so far I've yet to find a subject to shoot with the 505.
These can of course be stacked with tubes as well.
Havent done any focus stacking at all as most of my shots are handheld and not well planned
I do know that with tubes I wont have a huge dof, but I often like the weird resulting effect that extreme narrow dof gives.
Looking forward to trying out the new tubes with contacts with my kit.
I also have a raynox dcr 250 and 505. The 250 is useful but so far I've yet to find a subject to shoot with the 505.
These can of course be stacked with tubes as well.
Havent done any focus stacking at all as most of my shots are handheld and not well planned
Comment by derek897 posted on A few macros at 15/03/2017 - 21:40
davidwozhere wrote:
Try scraping the anodised black paint off where the tube touches the camera contacts. I tried a normal set and got the same problem you describe and then I tried a scraped Vivitar 2x converter tube (with the glass removed) when it all worked properly. Also, it helps to have the camera set to 'M'.
I used to have a de-glassed 2x as well. I don't trust myself to scrape the paint, id probably end up frying my camera. Try scraping the anodised black paint off where the tube touches the camera contacts. I tried a normal set and got the same problem you describe and then I tried a scraped Vivitar 2x converter tube (with the glass removed) when it all worked properly. Also, it helps to have the camera set to 'M'.
I always shoot manual anyway
Cheers
Derek
Comment by derek897 posted on A few macros at 14/03/2017 - 08:12
pschlute wrote:
Mmm I know what you mean. But another stop or 2 would make it easier to focus, and should be a little sharper without losing the Look, I hope.derek897 wrote:
So hopefully now new tubes are on the way I'll be able to get more Dof.
Cheers
I think it is the lack of DOF that make these images.So hopefully now new tubes are on the way I'll be able to get more Dof.
Cheers
Comment by derek897 posted on A few macros at 14/03/2017 - 07:13
walkeja wrote:
You could take a photo with a 100mm lens and somebody else could take the exact same image with 50mm lens. Fact.
Test your theory with your stated lenses.You could take a photo with a 100mm lens and somebody else could take the exact same image with 50mm lens. Fact.
Try shooting something with a bit of depth to it.
As said above shooting something that's flat is pointless
https://flic.kr/p/JxFiYZ
https://flic.kr/p/K3QYad
I had thought this topic was sorted. Ah well.
Comment by derek897 posted on You poo-pood my comment at 13/03/2017 - 15:39
Cheers guys, as David Storm has pointed out to me, they were all shot wide open at f2.8 as the ext tubes held the lens at that regardless of what I set. So hopefully now new tubes are on the way I'll be able to get more Dof.
Cheers
Cheers
Comment by derek897 posted on A few macros at 13/03/2017 - 12:28
Yes, your shot is what I get as well, that's brilliant. Really glad you had the same issue and spotted it in mine.
Much much appreciated
Much much appreciated
Comment by derek897 posted on A few macros at 12/03/2017 - 22:56
D
The extension tubes are making the lens shoot wide open. Even though the lens is set to min aperture at f32.
The lens on its own works as it should either set to A or using aperture ring.
It's funny that, as I had thought there was an issue before when testing something but when I took the lens and ext tubes off and looked down the barrel I could see that it was at min aperture.
Knowing that you know your stuff made me do a proper check, and sure enough
It's staying at f2.8 with the tubes on.
New tubes probably in order.
Mine are a set of vivitar auto ext tubes, though with no contacts I don't know why they call them auto.
Thanks again David, much appreciated
Derek
davidstorm wrote:
Hi Derek
Are you sure the aperture was F32? Are your tubes the kind with aperture contacts? Even with full tubes I am surprised how thin the DOF is and I wonder if it's possible the tubes affected the ability to set the desired aperture and whether the camera was actually shooting at max aperture?
I might be completely wrong here, but these shots don't look as though F32 was used.
Regards
David
And, you were correct. Hi Derek
Are you sure the aperture was F32? Are your tubes the kind with aperture contacts? Even with full tubes I am surprised how thin the DOF is and I wonder if it's possible the tubes affected the ability to set the desired aperture and whether the camera was actually shooting at max aperture?
I might be completely wrong here, but these shots don't look as though F32 was used.
Regards
David
The extension tubes are making the lens shoot wide open. Even though the lens is set to min aperture at f32.
The lens on its own works as it should either set to A or using aperture ring.
It's funny that, as I had thought there was an issue before when testing something but when I took the lens and ext tubes off and looked down the barrel I could see that it was at min aperture.
Knowing that you know your stuff made me do a proper check, and sure enough
It's staying at f2.8 with the tubes on.
New tubes probably in order.
Mine are a set of vivitar auto ext tubes, though with no contacts I don't know why they call them auto.
Thanks again David, much appreciated
Derek
Comment by derek897 posted on A few macros at 12/03/2017 - 22:53
Hi David, the ext tubes have no contacts. F32 set on aperture ring.
Will do a quick check to see if it's operating as it should.
Keep in mind these are at max magnification, closest focus I could achieve.
Will let you know.
Cheers
Will do a quick check to see if it's operating as it should.
Keep in mind these are at max magnification, closest focus I could achieve.
Will let you know.
Cheers
Comment by derek897 posted on A few macros at 12/03/2017 - 22:15
IMGP0974crpedsm by dr.shutter, on Flickr