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What is your favorite lens to focus on?
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PostPosted: Sat Mar 02, 2013 9:24 pm    Post subject: Reply with quote
Victor Nguyen wrote:
jjphoto wrote:


Everyone should have one!


Not everyone are rich


Yeah, I should probably say that everyone should have one if they where cheaper. You don't have to be rich to save for something that matters to you. It could be a car, a guitar, a lens. It doesn't matter, people save for things that matter to them all the time. I drive a very old car, because that doesn't matter to me. Some people change their cars all the time, people have different priorities.


PostPosted: Mon Mar 04, 2013 9:23 am    Post subject: Reply with quote
jjphoto wrote:


Yeah, I should probably say that everyone should have one if they where cheaper. You don't have to be rich to save for something that matters to you. It could be a car, a guitar, a lens. It doesn't matter, people save for things that matter to them all the time. I drive a very old car, because that doesn't matter to me. Some people change their cars all the time, people have different priorities.


You care more about a lens than a car? Hmmm, How much would you pay for ransom if I kidnap your lenses?


PostPosted: Mon Mar 04, 2013 9:59 am    Post subject: Reply with quote
Victor Nguyen wrote:
jjphoto wrote:


Yeah, I should probably say that everyone should have one if they where cheaper. You don't have to be rich to save for something that matters to you. It could be a car, a guitar, a lens. It doesn't matter, people save for things that matter to them all the time. I drive a very old car, because that doesn't matter to me. Some people change their cars all the time, people have different priorities.


You care more about a lens than a car? Hmmm, How much would you pay for ransom if I kidnap your lenses?


That's clearly not a very funny joke so is that a threat? Are you planning to steal from people? Interesting to see how you think.

Why don't you just threaten a family member instead, they are much more valueable than any product.


PostPosted: Mon Mar 04, 2013 11:19 am    Post subject: Reply with quote
I hate wide-field lenses with long focus throw. Doesn't make sense to me.

Canon FD 200mm f4 macro has far the best focus feel from the lenses that I used. Nikkor 50mm f1.2 is also great, but it has a ridiculously short focus throw for a f1.2.


PostPosted: Mon Mar 04, 2013 5:42 pm    Post subject: Reply with quote
hoanpham wrote:
Any lens with long focus throw, but also smooth, even, precise and damped.


Using that criterion, the Tamron 55BB 500mm f/8 mirror is also a good lens to consider. It has a very long focus throw, which is what makes it so nice to use, given that it has such a shallow depth of field and all.


PostPosted: Tue Mar 05, 2013 1:11 pm    Post subject: Reply with quote
jjphoto wrote:
Victor Nguyen wrote:
jjphoto wrote:


Yeah, I should probably say that everyone should have one if they where cheaper. You don't have to be rich to save for something that matters to you. It could be a car, a guitar, a lens. It doesn't matter, people save for things that matter to them all the time. I drive a very old car, because that doesn't matter to me. Some people change their cars all the time, people have different priorities.


You care more about a lens than a car? Hmmm, How much would you pay for ransom if I kidnap your lenses?


That's clearly not a very funny joke so is that a threat? Are you planning to steal from people? Interesting to see how you think.

Why don't you just threaten a family member instead, they are much more valueable than any product.


Guys, calm down, please.

This was not a good joke, indeed, but it neither was threatening, really. Nobody here should overreact, ok?


PostPosted: Tue Mar 05, 2013 2:57 pm    Post subject: Reply with quote
fermy wrote:
ForenSeil wrote:
I generally prefer a short way to focus


Me too. There is a tradeoff between focusing accuracy and speed, but some lenses have too long focus throw. One lens that comes to mind is a famous Kiron macro, it just goes on forever. However, Kiron is a heavy macro, probably mostly used on tripod, so that's understandable.


Some lenses really do benefit from a long focus throw. Any long telephoto or high-magnification lens that has an extremely shallow depth of field and which has a short focus throw can be very frustrating to focus precisely because it is too easy to miss that exact point of correct focus. Having a longer focusing throw on these types of lenses makes for a much more accurate experience and better quality photos as a result. Me, I'll put up with a longer throw if it means my images will benefit.

I think if I were to analyze this topic from more of an optical standpoint, I would assert that one factor is likely to be the size of the circle of confusion that determines how easy it is for a lens to be focused accurately. The smaller the circle of confusion the easier it will be to achieve precise focus. Cf: http://en.wikipedia.org/wiki/Circle_of_confusion


PostPosted: Tue Mar 05, 2013 9:17 pm    Post subject: Reply with quote
jjphoto wrote:

That's clearly not a very funny joke so is that a threat? Are you planning to steal from people? Interesting to see how you think.

Why don't you just threaten a family member instead, they are much more valueable than any product.


I apologize, I have a very weird sense of humor. This is what the internet have done to me. Embarassed
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