Sigma 105mm macro vs Sigma 150mm macro

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Hi

I currently use a Sigma 105/2.8 for my macro work, and I am thinking of getting a Sigma 150/2.8. But do you think it will be worth it? I'm not sure whether the results will justify the expense. I'm not concerned about working distance as I mainly shoot flowers rather than "bugs".

Any comments will be gratefully received

Thanks :)
 
pud said:
Hi

I currently use a Sigma 105/2.8 for my macro work, and I am thinking of getting a Sigma 150/2.8. But do you think it will be worth it? I'm not sure whether the results will justify the expense. I'm not concerned about working distance as I mainly shoot flowers rather than "bugs".

Any comments will be gratefully received

Thanks :)
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I would have thought the only advantage would be working distance as they are both 2.8 lenses (unless your lens is the older model, then there maybe some improvement in quality) - if your not concerned about working distance, what are you wanting the new lens to do "extra" :shrug:
 
Thanks for the quick reply!

The AF on my 105 is a bit dodgy - not a prob when I shoot macro though as I use MF anyway. Guess I may have been looking for an excuse for a new lens :thinking:

What got me thinking about a 150 was the other day I was shooting daisies (as you do) and I couldn't get in close enough with the 105 to make an image where only half of the daisy flower filled the frame. So would a 150 allow me to do this, or would I need to go to a 180...... Sorry - I know what I want to say but can't articulate it particularly brilliantly

thanks
 
The 150 won't give you any greater magnification over the 105 - they both offer 1:1 reproduction, the 150 just does it from further away. So, if I've understood the shot you were trying to get the answer is no, the 150 won't do it. Adding an extension tube to either lens would allow you get get closer and increase the magnification.
 
What you need is not a longer lens, but an extention tube.

If you go up in focal lengths, then the minimum focus distance is going to increase too. Leaving you right back with the shot you started with, just taken from a little further away.
 
Thanks both for the replies

That's saved me some money then !!!!!

thanks
 
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