not true macro ?
Posted 19/04/2015 - 17:18
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Hi I can't help you on that one but I would highly recommend a Tamron sp90 macro it's a cracking lens
Posted 19/04/2015 - 18:14
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If you take an image of a ruler you should be able to work it out.
Best regards, John
Posted 19/04/2015 - 18:57
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Pjy123 wrote:
Hi I can't help you on that one but I would highly recommend a Tamron sp90 macro it's a cracking lens
Hi I have a pentax 100mm macro anyway, i was just trying this with the f 50mm to see what it was like.Hi I can't help you on that one but I would highly recommend a Tamron sp90 macro it's a cracking lens
johnriley wrote:
If you take an image of a ruler you should be able to work it out.
Hi John, would that be straight on or at an angle ?
If you take an image of a ruler you should be able to work it out.
I know what i like, If not always why.
Posted 19/04/2015 - 18:59
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It would be easier straight on. You know the size of the sensor, you can read off the size of the ruler, so you can work out the magnification ratio.
Best regards, John
Posted 19/04/2015 - 19:52
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This might be a silly question but do I take it as close as I can focus or what ?
I know what i like, If not always why.
Posted 20/04/2015 - 02:07
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This is all getting too close to arithmetic for my liking - I don't do that. The pear blossoms are nice though.
Were the dandelions meant to be soft focus?
Were the dandelions meant to be soft focus?
Posted 20/04/2015 - 07:44
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Your maths Derek will reveal the magnification at the distance you focused on, so if you want the maximum magnification, you go for the closest possible focus.
Best regards, John
Posted 20/04/2015 - 08:25
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Hi David, no it wasnt meant to be soft focus just an indicator of the very shallow dof. ill step it down and see if its sharper and clearer.
Thanks John ill try that in an hour or so and see what happens.
Thanks John ill try that in an hour or so and see what happens.
I know what i like, If not always why.
Posted 20/04/2015 - 09:40
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This may be a better indicator of the dof, taken at f2.8 not wide open at f1.7
and a crop
And John this is a shot of a tape, dont have a ruler, pesky kids
No crop on this, Although to be honest i still dont know what this tells me :
and a crop
And John this is a shot of a tape, dont have a ruler, pesky kids
No crop on this, Although to be honest i still dont know what this tells me :
I know what i like, If not always why.
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2322 posts
13 years
Wicklow Ireland
Here are a couple of shots with this combo, 1 at f8 the rest at f1.7. They are of a pear blossom and a dandelion.
Any thoughts.