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02-12-2013, 03:27 AM   #1
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thoughts on the 45 lens

I'm planning on selling most of my 35mm gear inorder do justify getting into a 645 kit
My question is would the 45lens be wide enough for landscape?
Im used to shooting at 15 on my 35 and was concerned when i saw the 45 was comparable to a 28

And im leaning towards the 45 over the 35 silmply because i already have filters in that size

02-12-2013, 04:16 AM   #2
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QuoteOriginally posted by cvsuave Quote
I'm planning on selling most of my 35mm gear inorder do justify getting into a 645 kit
My question is would the 45lens be wide enough for landscape?
Im used to shooting at 15 on my 35 and was concerned when i saw the 45 was comparable to a 28

And im leaning towards the 45 over the 35 silmply because i already have filters in that size
Get the 35mm 645 lens. It has the wide angle that you need.

Regards

Chris
02-12-2013, 01:55 PM   #3
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If only the 15 gives you what you need then it has to be the 35 in MF. Having the right size filters for a 45 if it's not the right lens for you is really irrelevant. If you can get by on two lenses filter sizes then you buy a second set of filters to fit the 35 but if you feel that you will get a range of other sizes so you might need 3 or more sets then either buy the filter set for your widest diameter lens with step-up rings or get a set of square filters with different lens rings adaptors similar to the Cokin P set in terms of size

ashijock
02-12-2013, 02:04 PM   #4
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If you used 15mm on APS-C, the 35mm is very close in angle (the different ratio makes it slightly different). It also is the better lens. The A version has 77, the FA 82 I think.

02-12-2013, 02:22 PM   #5
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For landscapes on the 645D I love the 35mm A manual focus, it's my most used lens. Equal to about a 28mm on FF 35mm. It has the 77mm filter ring, so you only need one set of filters if you get the 45-85mm zoom, which outperforms the 45mm prime at 45mm. I probably use the 45-85mm half as often as the 35mm. The next most used lens for me is the 80-160. All three have 77mm filter ring, assuming you go with the A version of the 35mm. Manual focusing with the 35 A is very easy, as most landscapes are at or near infinity, and it's very sharp all the way down to f/22. If you need an autofocus and minimum aperture of f/32 then the FA 35mm might be the way to go. You could also see if you can find a copy of the 33-55mm zoom, though it isn't as sharp from what I hear. That one has the 82mm filter.
02-12-2013, 02:23 PM   #6
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Also, take a look at the Pentax lens database: Pentax 645 Medium Format Lenses - Pentax Lens Reviews & Lens Database
02-12-2013, 06:47 PM   #7
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Ya you guys are right its a shame that the 35 cost 3x more lol
Thanks for the input!
02-12-2013, 06:48 PM   #8
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The 35mm A is for sale at www.KEH.com for less than $500 the last time I checked. The FA is closer to $1100

02-12-2013, 10:19 PM   #9
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Go the 35mm if you are shooting landscapes, i have the 35mm M version and its a stunning piece of glass... if you want the 45 i have a spare one not being used, sure we could work something out, its M..i desperately want the 25mm so will sell everything i own to get it..wife and kids included.......lol.... kidding...
02-13-2013, 02:45 AM   #10
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QuoteOriginally posted by Bigvern1263 Quote
Go the 35mm if you are shooting landscapes, i have the 35mm M version and its a stunning piece of glass... if you want the 45 i have a spare one not being used, sure we could work something out, its M..i desperately want the 25mm so will sell everything i own to get it..wife and kids included.......lol.... kidding...
Lol good one that 25 looks to be a dream!
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02-13-2013, 10:06 AM   #11
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Stating the obvious but just in case here goes. With a 35mm and the kind of shots you'd take with it, the FA will probably not be needed or at least not needed to the tune of over twice the price

asahijock
02-14-2013, 05:40 PM   #12
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QuoteOriginally posted by asahijock Quote
Stating the obvious but just in case here goes. With a 35mm and the kind of shots you'd take with it, the FA will probably not be needed or at least not needed to the tune of over twice the price

asahijock
you'll just fine with the 45mm f 2.8,it's a good lensfor landscapes i do a 2 or 3 shot pan . who could ask for more? it's light and handy tooooooo.
02-16-2013, 11:23 AM   #13
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My SMC-A 35 645 was less than 500$. If manual focus is not a problem, I'd prefer it to the 45mm. 35mm and the 55/2.8 is covering the wide angle to normal very well, unless you really need super wide angle (then you have to spend quite a lot of money for the 25mm).
The 45mm is about 35mm on 135 film, the 35mm is about 28mm on 135mm film.

The 35mm is one of the best lenses I have on the 645D. And this is more than just two or three lenses. I think, just the 6x7 55/4 (latest version) is showing a little bit of even finder details on my 645D.
02-18-2013, 09:58 AM   #14
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QuoteOriginally posted by donesteban Quote
The 45mm is about 35mm on 135 film, the 35mm is about 28mm on 135mm film.

.
Isn't the 45 about 28 on 135 and the 35 about 22mm on 135. If so, a 28mm on a 135 is pretty wide for all except the likes of shots in cramped spaces. So a football(soccer) team photo in a normal size living room might be difficult but for most wide angles outdoors a 45 is pretty good. I understand the ratio of 135 to 645 for lenses is about 0.62

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02-18-2013, 10:10 AM   #15
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Depends on if you're talking 645 film or 645D digital, as the sensor is "only 33x44" so that changes things.
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