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RobSpain · 11-18-2018, 01:24 PM

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I've just ordered online a second hand SMC Pentax-M 100mm F4 macro and am looking for a lens hood. I know the filter thread is 49mm, so does any tubular hood suit this lens? I've seen two types online, one with what appears to be a bayonet fitting, the other, a straight forward thread mount. Could someone please clarify for me? Many thanks.

**pepperberry farm** · 11-18-2018, 01:35 PM - **1 Like**

I have the A version of this lens and use a generic screw-in metal hood...

as far as I know, this lens does not have a bayonet for a hood...

Thagomizer · 11-18-2018, 02:17 PM - **1 Like**

If it's like the S-M-C Takumar 100mm f4 macro, the front element sits pretty far back from the front of the lens. You might not need a hood.

Docrwm · 11-18-2018, 02:21 PM - **1 Like**

I use that lens regularly. Part of the beauty is that the front element is recessed fairly deeply. You want a threaded 49mm hood - either a tubular model or a three-stage rubber collapsible hood will do just fine. The original hoods for that model were plastic clip on (but they did not hold up well generally) PH-R49.

**mattt** · 11-18-2018, 02:50 PM - **2 Likes**

Originally posted by pepperberry farm

I have the A version of this lens and use a generic screw-in metal hood...

as far as I know, this lens does not have a bayonet for a hood...

I do the same. Screw in metal short telephoto hoods can be easily found at my local shops, and they occasionally make appearances at thrift stores... probably your most economic hood option.

**jlstrawman** · 11-18-2018, 03:03 PM - **1 Like**

b+w 49mm #900 rubber lens hood | B&H Photo Video

Great quality and bang for the buck.

**pepperberry farm** · 11-18-2018, 03:13 PM - **2 Likes**

Originally posted by mattt

I do the same. Screw in metal short telephoto hoods can be easily found at my local shops, and they occasionally make appearances at thrift stores... probably your most economic hood option.

plus Amazon and eBay carry stacks of them...

sqrrl · 11-18-2018, 03:40 PM - **2 Likes**

I have that lens, I have a cheap generic 49mm aluminium hood on it (no bayonet) - the front element is fairly well recessed, but with a minimum focal distance of about 40cm from the front of the lens there's no reason not to use a hood, it doesn't get in the way and is useful for lens protection.

**dms** · 11-18-2018, 08:17 PM - **1 Like**

Ken Rockwell has a nice review of this lens and shows the standard bayonet hood, case, etc. As I know his name brings a knee jerk reaction to some, I would add this review is very straightforward, and very complimentary of the lens.

BTW I think I would get the metal Takumar hood (49mm) labeled as for 135, 150 and 200 mm. They are widely available used and inexpensive.**
_____
** Just re-looked at Rockwell's review, and the Pentax bayonet hood is reversible--very neat.

RobSpain · 11-19-2018, 02:21 AM

Originally posted by dms

Ken Rockwell has a nice review of this lens and shows the standard bayonet hood, case, etc. As I know his name brings a knee jerk reaction to some, I would add this review is very straightforward, and very complimentary of the lens.

BTW I think I would get the metal Takumar hood (49mm) labeled as for 135, 150 and 200 mm. They are widely available used and inexpensive.**
_____
** Just re-looked at Rockwell's review, and the Pentax bayonet hood is reversible--very neat.

Thanks for this. In fact I read it just yesterday. Yes it was a good review.

---------- Post added 11-19-18 at 02:24 AM ----------

Many thanks to you all for your very quick replys. I'm looking forward to receiving this lens as so many people rave about it for Macro photography.

Wasp · 11-19-2018, 03:57 AM - **1 Like**

Originally posted by dms

BTW I think I would get the metal Takumar hood (49mm) labeled as for 135, 150 and 200 mm. They are widely available used and inexpensive.

That would be perfect for APS-C but some vignetting might appear on full frame.

micromacro · 11-20-2018, 09:41 PM - **2 Likes**

Originally posted by dms

BTW I think I would get the metal Takumar hood (49mm) labeled as for 135, 150 and 200 mm. They are widely available used and inexpensive.

Yes, that hood and supertak 35mm hood I use for supertak 50mm both fit Pentax M 100mm . I used the first one (longer) with it. I believe that any metal takumar hood 49mm will fit.

https://www.ebay.com/itm/Asahi-Pentax-Takumar-49mm-Screw-in-Metal-Lens-Hood-...jdA:rk:53:pf:0

TaoMaas · 11-21-2018, 05:10 PM - **2 Likes**

Originally posted by pepperberry farm

I have the A version of this lens and use a generic screw-in metal hood...

as far as I know, this lens does not have a bayonet for a hood...

I have the A version, too, and use an older Pentax hood that was originally made for either the 135mm or the 150mm lens, I think. Even though the front element is fairly recessed, I always operate on the theory that the deeper hood you can use, the better. Oh...and that's a pinch-mount hood in the Rockwell article. Pentax bayonet hoods didn't come along until later.

RobSpain · 11-22-2018, 01:21 AM

Originally posted by TaoMaas

I have the A version, too, and use an older Pentax hood that was originally made for either the 135mm or the 150mm lens, I think. Even though the front element is fairly recessed, I always operate on the theory that the deeper hood you can use, the better. Oh...and that's a pinch-mount hood in the Rockwell article. Pentax bayonet hoods didn't come along until later.

Thanks for clarifying that. The picture in the article clearly shows the bayonet (reversible) and you obviously can't have the screw thread as well.

micromacro · 11-22-2018, 05:38 AM - **1 Like**

Originally posted by Wasp

That would be perfect for APS-C but some vignetting might appear on full frame.

I probably need to check it again, but I don't remember any noticeable vignetting for combo K-1 with M100 mm f4 and that hood.

11-18-2018, 01:24 PM	#1
RobSpain Pentaxian Join Date: Oct 2018 Location: Malaga province Posts: 494	Lens hood for SMC Pentax-M 100mm F4 Macro Staff note: This post may contain affiliate links, which means Pentax Forums may earn a small commission if a visitor clicks through and makes a purchase. If you would like to support the forum directly, you may also make a donation here. I've just ordered online a second hand SMC Pentax-M 100mm F4 macro and am looking for a lens hood. I know the filter thread is 49mm, so does any tubular hood suit this lens? I've seen two types online, one with what appears to be a bayonet fitting, the other, a straight forward thread mount. Could someone please clarify for me? Many thanks.

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11-18-2018, 01:35 PM - 1 Like	#2
pepperberry farm amateur dirt farmer Join Date: Dec 2014 Location: probably out in a field somewhere... Photos: Gallery \| Albums Posts: 41,797	I have the A version of this lens and use a generic screw-in metal hood... as far as I know, this lens does not have a bayonet for a hood...

11-18-2018, 02:17 PM - 1 Like	#3
Thagomizer Pentaxian Join Date: Jun 2014 Location: London Ontario Posts: 2,068	If it's like the S-M-C Takumar 100mm f4 macro, the front element sits pretty far back from the front of the lens. You might not need a hood.

11-18-2018, 02:21 PM - 1 Like	#4
Docrwm Veteran Member Join Date: Sep 2010 Location: Somewhere in the Southern US Photos: Gallery \| Albums Posts: 12,285	I use that lens regularly. Part of the beauty is that the front element is recessed fairly deeply. You want a threaded 49mm hood - either a tubular model or a three-stage rubber collapsible hood will do just fine. The original hoods for that model were plastic clip on (but they did not hold up well generally) PH-R49.

11-18-2018, 02:50 PM - 2 Likes	#5
mattt Site Supporter Join Date: Feb 2011 Location: Niagara Photos: Gallery \| Albums Posts: 3,907	Originally posted by pepperberry farm I have the A version of this lens and use a generic screw-in metal hood... as far as I know, this lens does not have a bayonet for a hood... I do the same. Screw in metal short telephoto hoods can be easily found at my local shops, and they occasionally make appearances at thrift stores... probably your most economic hood option.

11-18-2018, 03:03 PM - 1 Like	#6
jlstrawman Site Supporter Join Date: Feb 2010 Location: Midwest US Photos: Gallery Posts: 1,058	b+w 49mm #900 rubber lens hood \| B&H Photo Video Great quality and bang for the buck.

11-18-2018, 03:13 PM - 2 Likes	#7
pepperberry farm amateur dirt farmer Join Date: Dec 2014 Location: probably out in a field somewhere... Photos: Gallery \| Albums Posts: 41,797	Originally posted by mattt I do the same. Screw in metal short telephoto hoods can be easily found at my local shops, and they occasionally make appearances at thrift stores... probably your most economic hood option. plus Amazon and eBay carry stacks of them...

11-18-2018, 03:40 PM - 2 Likes	#8
sqrrl Veteran Member Join Date: Mar 2017 Location: Otago, New Zealand Posts: 422	I have that lens, I have a cheap generic 49mm aluminium hood on it (no bayonet) - the front element is fairly well recessed, but with a minimum focal distance of about 40cm from the front of the lens there's no reason not to use a hood, it doesn't get in the way and is useful for lens protection.

11-18-2018, 08:17 PM - 1 Like	#9
dms Site Supporter Join Date: Aug 2011 Location: New York, NY Photos: Gallery Posts: 2,192	Ken Rockwell has a nice review of this lens and shows the standard bayonet hood, case, etc. As I know his name brings a knee jerk reaction to some, I would add this review is very straightforward, and very complimentary of the lens. BTW I think I would get the metal Takumar hood (49mm) labeled as for 135, 150 and 200 mm. They are widely available used and inexpensive. _____ Just re-looked at Rockwell's review, and the Pentax bayonet hood is reversible--very neat. Last edited by dms; 11-18-2018 at 08:27 PM. Reason: Added comment about hood being reversable

11-19-2018, 02:21 AM	#10
RobSpain Pentaxian Join Date: Oct 2018 Location: Malaga province Posts: 494 Original Poster	Originally posted by dms Ken Rockwell has a nice review of this lens and shows the standard bayonet hood, case, etc. As I know his name brings a knee jerk reaction to some, I would add this review is very straightforward, and very complimentary of the lens. BTW I think I would get the metal Takumar hood (49mm) labeled as for 135, 150 and 200 mm. They are widely available used and inexpensive. _____ Just re-looked at Rockwell's review, and the Pentax bayonet hood is reversible--very neat. Thanks for this. In fact I read it just yesterday. Yes it was a good review. ---------- Post added 11-19-18 at 02:24 AM ---------- Many thanks to you all for your very quick replys. I'm looking forward to receiving this lens as so many people rave about it for Macro photography.

11-19-2018, 03:57 AM - 1 Like	#11
Wasp Pentaxian Join Date: Mar 2017 Location: Pretoria Photos: Gallery Posts: 4,663	Originally posted by dms BTW I think I would get the metal Takumar hood (49mm) labeled as for 135, 150 and 200 mm. They are widely available used and inexpensive. That would be perfect for APS-C but some vignetting might appear on full frame.

11-20-2018, 09:41 PM - 2 Likes	#12
micromacro Pentaxian Join Date: Jan 2014 Location: Florida Photos: Gallery Posts: 3,722	Originally posted by dms BTW I think I would get the metal Takumar hood (49mm) labeled as for 135, 150 and 200 mm. They are widely available used and inexpensive. Yes, that hood and supertak 35mm hood I use for supertak 50mm both fit Pentax M 100mm . I used the first one (longer) with it. I believe that any metal takumar hood 49mm will fit. https://www.ebay.com/itm/Asahi-Pentax-Takumar-49mm-Screw-in-Metal-Lens-Hood-...jdA:rk:53:pf:0

11-21-2018, 05:10 PM - 2 Likes	#13
TaoMaas Pentaxian Join Date: May 2007 Location: Oklahoma City Photos: Gallery \| Albums Posts: 3,574	Originally posted by pepperberry farm I have the A version of this lens and use a generic screw-in metal hood... as far as I know, this lens does not have a bayonet for a hood... I have the A version, too, and use an older Pentax hood that was originally made for either the 135mm or the 150mm lens, I think. Even though the front element is fairly recessed, I always operate on the theory that the deeper hood you can use, the better. Oh...and that's a pinch-mount hood in the Rockwell article. Pentax bayonet hoods didn't come along until later.

11-22-2018, 01:21 AM	#14
RobSpain Pentaxian Join Date: Oct 2018 Location: Malaga province Posts: 494 Original Poster	Originally posted by TaoMaas I have the A version, too, and use an older Pentax hood that was originally made for either the 135mm or the 150mm lens, I think. Even though the front element is fairly recessed, I always operate on the theory that the deeper hood you can use, the better. Oh...and that's a pinch-mount hood in the Rockwell article. Pentax bayonet hoods didn't come along until later. Thanks for clarifying that. The picture in the article clearly shows the bayonet (reversible) and you obviously can't have the screw thread as well.

11-22-2018, 05:38 AM - 1 Like	#15
micromacro Pentaxian Join Date: Jan 2014 Location: Florida Photos: Gallery Posts: 3,722	Originally posted by Wasp That would be perfect for APS-C but some vignetting might appear on full frame. I probably need to check it again, but I don't remember any noticeable vignetting for combo K-1 with M100 mm f4 and that hood.

Lens hood for SMC Pentax-M 100mm F4 Macro

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