Why are there not more f/1.8 lenses from Nikon, Canon and Sony?

10 months 3 weeks ago #655457 by garyrhook

D Hornick wrote:

garyrhook wrote:

D Hornick wrote:

J Photo Man wrote: Dude that would be a crazy heavy lens and expensive.  I don't think the market would support such a lens, not at least from a volume standpoint.  

Understatement!  After I posted yesterday I was thinking about the weight, it would be nuts.  

Right. Because no one mentioned weight earlier in this thread. Or cost.

Hey why so rude?  I didn't say or suggest I was the first to bring this up.  I was just saying that I had thought about this.  It's a forum, I'm just adding to the discussion based on what was on my mind.  

1) If I misunderstood that your comment was intended as a confirmation, my apologies. That's not the way I read it, and I clearly could have considered other interpretations. I shall endeavor to do so in the future.

2) A not insignificant number of people think it's okay to ready the OP, ignore everything else that has happened on a thread, and post a comment. That's akin to walking into the middle of a conversation and trying to add to it when one does not really know what is going on. I, and I think most people would, find that problematic: "I can't be bothered to find out what's been said, but here's my opinion."

In light of (1), above, I made an assumption, but I see now I also made a mistake.

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10 months 3 weeks ago #655464 by D Hornick
Well thank you.  I appreciate you taking the time and responding with what you did. 

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10 months 2 weeks ago #655801 by Piechura
The OP hasn't been back since asking the question to clarify, but a bit of research suggests that the Sigma lenses they are referring to are lenses designed for APS-C cameras. In that case, I think it is an interesting question as to why the camera manufacturers haven't produced anything faster than an f2.8 for those systems.

Sigma do an 18-35mm f1.8 (27-52.5mm full frame equivalent) for $640 and a 50-100mm f1.8 (80-160mm ff equivalent) for $1100. One thing to mention here is that they are both shorter zoom ranges than your traditional focal lengths, presumably to keep the cost and weight down to sensible levels.

Both Nikon and Canon do a 17-55mm f2.8 and Sony do a 16-50 f2.8, which obviously have more zoom range than the Sigma, but are not as fast. But for APS-C cameras, they are all quite limited in terms of the number of constant aperture zoom lenses they offer. This may be a reflection of the budget of people who typically buy APS-C cameras. Or they might want customers to basically outgrow their cameras and migrate to full frame systems. It's telling that Sigma are also the only manufacturer to make f1.4 prime lenses specifically for these APS-C systems too.

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10 months 2 weeks ago #655855 by Farestad
It would be entertaining however I don't think I would use such wide aperture enough to justify the crazy price you know they would charge for it.  

EF 50mm f/1.4
EF 35mm f/1.4L USM
EF 100mm f/2
EF 70-200mm f/4
EF 18-55mm
EF 85mm f/1.8 USM

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10 months 2 weeks ago #655949 by Carry
Is Sigma using as many elements to make these 1.8 lenses?  How are they able to pull this off without their lenses costing a trillion dollars?

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